Current portion of long-term debt

3,444.3

^[1]

3,368.5

^[1]

Other non-current assets

471.2

460.3

TOTAL ASSETS

12,876.6

13,070.8

LIABILITIES:

Accounts payable

6,647.2

6,806.7

Accrued liabilities

827.1

780.5

Short-term borrowings

153.5

114.8

404.8

^[2]

38.9

^[2]

Total current liabilities

8,032.6

7,740.9

Long-term debt

1,210.9

1,583.3

Deferred compensation

440.3

486.1

Other non-current liabilities

452.1

402.4

TOTAL LIABILITIES

10,135.9

10,212.7

Redeemable noncontrolling interests (see Note 5)

243.4

291.2

STOCKHOLDERS' EQUITY:

Preferred stock

221.5

Common stock

48.2

47.5

Additional paid-in capital

2,427.5

2,456.8

Retained earnings (accumulated deficit)

405.1

(63.7)

Accumulated other comprehensive loss, net of tax

(225.7)

(119.0)

Stockholders Equity Subtotal Before Treasury Stock

2,876.6

2,543.1

Less: Treasury stock

(414.9)

(14.1)

Total IPG stockholders' equity

2,461.7

2,529.0

Noncontrolling interests

35.6

37.9

TOTAL STOCKHOLDERS' EQUITY

2,497.3

2,566.9

TOTAL LIABILITIES AND EQUITY

$ 12,876.6

$ 13,070.8

[1]

For all periods presented we have not recorded a goodwill impairment charge.

[2]

On March 15, 2012, holders of our 4.25% Convertible Senior Notes due 2023 (the “4.25% Notes”) may require us to repurchase their notes for cash at par, and accordingly, we included these notes in the current portion of long-term debt on our December 31, 2011 Consolidated Balance Sheet. The 4.25% Notes are redeemable in whole or in part at our option beginning March 15, 2012. Any 4.25% Notes not repurchased on March 15, 2012 and not called for redemption by us will be reclassified to long-term debt. On August 15, 2011, our 7.25% Senior Unsecured Notes due 2011 (the "2011 Notes") matured. Therefore we included these notes in current portion of long-term debt on our December 31, 2010 Consolidated Balance Sheet.

Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 55.4	$ 63.1
Preferred Stock, Par Value	$ 0.00	$ 0.00
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Shares Issued	200,000	200,000
Preferred Stock, Shares Outstanding	200,000	200,000
Common Stock, Par Value	$ 0.10	$ 0.10
Common Stock, Shares Authorized	800,000,000	800,000,000
Common Stock, Shares, Issued	491,400,000	489,500,000
Common Stock, Shares, Outstanding	449,500,000	489,100,000
Treasury Stock, Shares	41,900,000	400,000

Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 551.5	$ 281.2	$ 143.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets and intangible assets	150.9	148.4	169.9
Provision for uncollectible receivables	10.4	10.7	19.3
Amortization of restricted stock and other non-cash compensation	51.7	50.0	49.5
Net amortization of bond (premiums) discounts and deferred financing costs	(8.7)	(4.4)	12.1
Deferred income tax provision	83.9	56.0	89.2
Gain on sale of an investment	(132.2)	0	0
Loss on early extinguishment of debt	0	0.1	25.1
Other	28.2	24.9	13.4
Changes in assets and liabilities, net of acquisitions and dispositions, providing (using) cash:
Accounts receivable	(219.2)	(547.6)	179.5
Expenditures billable to clients	(39.2)	(122.8)	19.7
Other current assets	(42.0)	(0.2)	33.1
Accounts payable	(62.9)	867.4	230.0
Accrued liabilities	3.9	66.4	(363.4)
Other non-current assets and liabilities	(102.8)	(12.8)	(80.0)
Net cash provided by operating activities	273.5	817.3	540.8
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of an investment	133.5	0	0
Acquisitions, including deferred payments, net of cash acquired	(63.1)	(61.9)	(72.4)
Capital expenditures	(140.3)	(96.3)	(67.1)
Net (purchases) sales and maturities of short-term marketable securities	(0.7)	(2.5)	158.5
Other investing activities	11.8	52.2	10.4
Net cash (used in) provided by investing activities	(58.8)	(108.5)	29.4
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchase of common stock	(400.8)	0	0
Common stock dividends	(111.1)	0	0
Repurchase of preferred stock	0	(265.9)	0
Purchase of long-term debt	(38.9)	(217.3)	(783.4)
Proceeds from issuance of 10.00% Senior Notes due 2017	0	0	587.7
Net increase in short term bank borrowings	42.5	17.4	0
Acquisition-related payments	(71.5)	(29.5)	(5.9)
Distributions to noncontrolling interests	(23.0)	(21.5)	(22.2)
Preferred stock dividends	(11.6)	(19.6)	(27.6)
Other financing activities	73.4	(11.3)	(15.6)
Net cash used in financing activities	(541.0)	(547.7)	(267.0)
Effect of foreign exchange rate changes on cash and cash equivalents	(46.7)	19.4	84.8
Net (decrease) increase in cash and cash equivalents	(373.0)	180.5	388.0
Cash and cash equivalents at beginning of period	2,675.7	2,495.2	2,107.2
Cash and cash equivalents at end of period	$ 2,302.7	$ 2,675.7	$ 2,495.2

Consolidated Statement of Stockholders' Equity and Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Changes in market value of securities available-for-sale, tax	$ 0	$ 0.1	$ 0.1
Unrecognized losses, transition obligation and prior service cost, tax	$ (1.5)	$ (5.5)	$ (4.4)

Tax effect of the gross appreciation or the gross loss, net of reclassification adjustment, in the value of the total unsold available-for-sale securities at the end of an accounting period.

+ References+ Details

Summary of Significant Accounting Policies

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References+ Details

Consolidated Statements of Stockholders' Equity and Comprehensive Income (USD $) In Millions	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss, Net of Tax	Treasury Stock	Total IPG Stockholders' Equity	Noncontrolling Interests
Beginning balance at Dec. 31, 2008	$ 2,244.2	$ 525.0	$ 46.4	$ 2,413.5	$ (446.1)	$ (318.5)	$ (14.0)	$ 2,206.3	$ 37.9
Beginning balance, shares at Dec. 31, 2008			477.1
Net income	143.4				121.3			121.3	22.1
Foreign currency translation adjustments, net of tax	131.2					128.9		128.9	2.3
Changes in market value of securities available-for-sale, net of tax	0.5					0.5		0.5
Recognition of previously unrealized loss on securities available-for-sale, net of tax	(0.4)					(0.4)		(0.4)
Unrecognized losses, transition obligation and prior service cost, net of tax	12.9					12.9		12.9
Total comprehensive income	287.6							263.2	24.4
Reclassifications related to redeemable noncontrolling interests	8.0			10.5				10.5	(2.5)
Noncontrolling interest transactions	(5.3)			(5.4)				(5.4)	0.1
Distributions to noncontrolling interests	(22.2)								(22.2)
Change in redemption value of redeemable noncontrolling interests	12.0			12.0				12.0
Preferred stock dividends	(27.6)			(27.6)				(27.6)
Stock-based compensation, shares			12.8
Stock-based compensation, value	55.1		1.0	54.1				55.1
Shares withheld for taxes, shares			(3.4)
Shares withheld for taxes, value	(17.1)		(0.3)	(16.8)				(17.1)
Exercise of stock options, shares	0
Other	1.6			0.7				0.7	0.9
Ending balance at Dec. 31, 2009	2,536.3	525.0	47.1	2,441.0	(324.8)	(176.6)	(14.0)	2,497.7	38.6
Ending balance, shares at Dec. 31, 2009			486.5
Net income	281.2				261.1			261.1	20.1
Foreign currency translation adjustments, net of tax	35.9					34.0		34.0	1.9
Changes in market value of securities available-for-sale, net of tax	0.6					0.6		0.6
Recognition of previously unrealized loss on securities available-for-sale, net of tax	(0.2)					(0.2)		(0.2)
Unrecognized losses, transition obligation and prior service cost, net of tax	23.2					23.2		23.2
Total comprehensive income	340.7							318.7	22.0
Reclassifications related to redeemable noncontrolling interests	2.0			3.5				3.5	(1.5)
Noncontrolling interest transactions	(27.9)			(28.1)				(28.1)	0.2
Distributions to noncontrolling interests	(21.5)								(21.5)
Change in redemption value of redeemable noncontrolling interests	(11.0)			(11.0)				(11.0)
Repurchase of preferred stock	(267.6)	(303.5)		(35.9)				(267.6)
Capped Call Transaction Costs	(22.8)			(22.8)				(22.8)
Preferred stock dividends	(15.6)			(15.6)				(15.6)
Stock-based compensation, shares			2.7
Stock-based compensation, value	55.8		0.4	55.4				55.8
Shares withheld for taxes, shares			(0.2)
Shares withheld for taxes, value	(11.9)		(0.1)	(11.8)				(11.9)
Tax effect from stock-based compensation	4.5			4.5				4.5
Exercise of stock options, shares	0.5		0.5
Other	5.9		0.1	5.8			(0.1)	5.8	0.1
Ending balance at Dec. 31, 2010	2,566.9	221.5	47.5	2,456.8	(63.7)	(119.0)	(14.1)	2,529.0	37.9
Ending balance, shares at Dec. 31, 2010			489.5
Net income	551.5				532.3			532.3	19.2
Foreign currency translation adjustments, net of tax	(92.1)					(89.6)		(89.6)	(2.5)
Changes in market value of securities available-for-sale, net of tax	(0.1)					(0.1)		(0.1)
Recognition of previously unrealized loss on securities available-for-sale, net of tax	0.3					0.3		0.3
Unrecognized losses, transition obligation and prior service cost, net of tax	(17.3)					(17.3)		(17.3)
Total comprehensive income	442.3							425.6	16.7
Reclassifications related to redeemable noncontrolling interests	10.4			2.7				2.7	7.7
Noncontrolling interest transactions	(1.6)			0.4	0.6			1.0	(2.6)
Distributions to noncontrolling interests	(23.0)								(23.0)
Change in redemption value of redeemable noncontrolling interests	(14.1)			(10.6)	(3.5)			(14.1)
Repurchase of common stock	(400.8)						(400.8)	(400.8)
Common stock dividends	(111.1)			(56.8)	(54.3)			(111.1)
Preferred stock dividends	(11.6)			(5.8)	(5.8)			(11.6)
Stock-based compensation, shares			1.5
Stock-based compensation, value	48.7		0.8	47.9				48.7
Shares withheld for taxes, shares			(0.9)
Shares withheld for taxes, value	(27.0)		(0.2)	(26.8)				(27.0)
Tax effect from stock-based compensation	8.4			8.4				8.4
Exercise of stock options, shares	1.3		1.3
Exercise of stock options, value	12.0		0.1	11.9				12.0
Other	(2.2)			(0.6)	(0.5)			(1.1)	(1.1)
Ending balance at Dec. 31, 2011	$ 2,497.3	$ 221.5	$ 48.2	$ 2,427.5	$ 405.1	$ (225.7)	$ (414.9)	$ 2,461.7	$ 35.6
Ending balance, shares at Dec. 31, 2011			491.4

Summary of Significant Accounting Policies (Notes)

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Business Description

The Interpublic Group of Companies, Inc. and subsidiaries (the “Company,” “IPG,” “we,” “us” or “our”) is one of the world’s premier global advertising and marketing services companies. Our agencies create customized marketing programs for many of the world’s largest companies. Comprehensive global services are critical to effectively serve our multinational and local clients in markets throughout the world, as they seek to build brands, increase sales of their products and services and gain market share in an increasingly complex and fragmented media landscape.

Principles of Consolidation

The Consolidated Financial Statements include the accounts of the Company and its consolidated subsidiaries, most of which are wholly owned. Investments in companies over which we do not have control, but the ability to exercise significant influence, are accounted for using the equity method of accounting. Investments in companies over which we have neither control nor have the ability to exercise significant influence are accounted for under the cost method. All intercompany accounts and transactions have been eliminated in consolidation.

We have consolidated certain entities meeting the definition of variable interest entities, and the inclusion of these entities does not have a material impact on our Consolidated Financial Statements.

Reclassifications

Certain reclassifications have been made to the prior period financial statements to conform to the current year presentation.

During the third quarter of 2011, we combined media and production liabilities that were previously reflected in accrued liabilities with accounts payable in our Consolidated Balance Sheets to better reflect all media and production related liabilities in one caption. As a result of this change, which was applied retrospectively, accounts payable includes all media and production liabilities. As of December 31, 2011 and December 31, 2010, accounts payable increased and accrued liabilities decreased by $2,613.6 and $2,332.2, respectively. This change does not impact net working capital movements, operating cash flows or total current liabilities.

During the first quarter of 2011, we changed the classification of taxes assessed by governmental authorities that are directly imposed on our revenue-producing transactions from a gross to a net basis in a country. This change, which was applied retrospectively and does not change previously reported operating income or net income, decreased revenue and office and general expense by $24.6 and $20.2 for the years ended December 31, 2010 and December 31, 2009, respectively. A comparable amount is included as a reduction to revenue and office and general expense for the year ended December 31, 2011. We believe this presentation better aligns the Company’s internal financial and operational management reporting as well as increases consistency in our external reporting across the countries in which we operate.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires us to make judgments, assumptions and estimates that affect the amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the reporting date and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and assumptions.

Revenue Recognition

Our revenues are primarily derived from the planning and execution of advertising, marketing and communications programs in various media around the world. Our revenue is directly dependent upon the advertising, marketing and corporate communications requirements of our clients. Our revenue tends to be higher in the second half of the calendar year as a result of the holiday season and lower in the first half as a result of the post-holiday slow-down in client activity.

Most of our client contracts are individually negotiated and, accordingly, the terms of client engagements and the bases on which we earn commissions and fees vary significantly. Our client contracts are complex arrangements that may include provisions for incentive compensation and vendor rebates and credits. Our largest clients are multinational entities and, as such, we often provide services to these clients out of multiple offices and across many of our agencies. In arranging for such services, it is possible that we will enter into global, regional and local agreements. Agreements of this nature are reviewed by legal counsel to determine the governing terms to be followed by the offices and agencies involved.

Revenue for our services is recognized when all of the following criteria are satisfied: (i) persuasive evidence of an arrangement exists; (ii) the price is fixed or determinable; (iii) collectability is reasonably assured; and (iv) services have been performed. Depending on the terms of a client contract, fees for services performed can be recognized in three principal ways: proportional performance (input or output), straight-line (or monthly basis) or completed contract.

•

Fees are generally recognized as earned based on the proportional performance input method of revenue recognition in situations where our fee is reconcilable to the actual hours incurred to service the client as detailed in a contractual staffing plan, where the fee is earned on a per hour basis or where actual hours incurred are provided to the client on a periodic basis (whether or not the fee is reconcilable), with the amount of revenue recognized in these situations limited to the amount realizable under the client contract. We believe an input-based measure (the ‘hour’) is appropriate in situations where the client arrangement essentially functions as a time and out-of-pocket expense contract and the client receives the benefit of the services provided throughout the contract term.


•	Fees are recognized on a straight-line or monthly basis when service is provided essentially on a pro-rata basis and the terms of the contract support monthly basis accounting.

•

Certain fees (such as for major marketing events) are deferred until contract completion because the final act is so significant in relation to the service transaction taken as a whole. Fees may also be deferred and recognized upon delivery of a project if the terms of the client contract identify individual discrete projects, or on the completed contract basis if any of the terms of the contract do not otherwise qualify for proportional performance or monthly basis recognition.

Depending on the terms of the client contract, revenue is derived from diverse arrangements involving fees for services performed, commissions, performance incentive provisions and combinations of the three. Commissions are generally earned on the date of the broadcast or publication. Contractual arrangements with clients may also include performance incentive provisions designed to link a portion of our revenue to our performance relative to either qualitative or quantitative goals, or both. Performance incentives are recognized as revenue for quantitative targets when the target has been achieved and for qualitative targets when confirmation of the incentive is received from the client.

The majority of our revenue is recorded as the net amount of our gross billings less pass-through expenses charged to a client. In most cases, the amount that is billed to clients significantly exceeds the amount of revenue that is earned and reflected in our Consolidated Financial Statements because of various pass-through expenses, such as production and media costs. We assess whether our agency or the third-party supplier is the primary obligor, and we evaluate the terms of our client agreements as part of this assessment. In addition, we give appropriate consideration to other key indicators such as latitude in establishing price, discretion in supplier selection and credit risk to the vendor. Because we operate broadly as an advertising agency, based on our primary lines of business and given the industry practice to generally record revenue on a net versus gross basis, we believe that there must be strong evidence in place to overcome the presumption of net revenue accounting. Accordingly, we generally record revenue net of pass-through charges as we believe the key indicators of the business suggest we generally act as an agent on behalf of our clients in our primary lines of business. In those businesses where the key indicators suggest we act as a principal (primarily sales promotion and event, sports and entertainment marketing), we record the gross amount billed to the client as revenue and the related incremental direct costs incurred as office and general expenses. In general, we also report revenue net of taxes assessed by governmental authorities that are directly imposed on our revenue-producing transactions.

As we provide services as part of our core operations, we generally incur incidental expenses, which, in practice, are commonly referred to as “out-of-pocket” expenses. These expenses often include expenses related to airfare, mileage, hotel stays, out of town meals and telecommunication charges. We record the reimbursements received for such incidental expenses as revenue with a corresponding offset to office and general expense.

We receive credits from our vendors and media outlets for transactions entered into on behalf of our clients that, based on the terms of our contracts and local law, are either remitted to our clients or retained by us. If amounts are to be passed through to clients, they are recorded as liabilities until settlement or, if retained by us, are recorded as revenue when earned. Income or expense may also be realized in connection with settling vendor discount or credit liabilities that were established as part of the restatement we presented in our 2004 Annual Report on Form 10-K (the “2004 Restatement”). In these situations, and given the historical nature of these liabilities, we generally record such items as other income or expense as we do not consider these to be part of current operating results. We release certain of these credit liabilities when the statute of limitations has lapsed, unless the liabilities are associated with customers with whom we are in the process of settling such liabilities. These amounts are generally reported in other income, net.

Cash and Cash Equivalents

Cash equivalents are highly liquid investments, which include certificates of deposit, government securities, commercial paper and time deposits with original maturities of three months or less at the time of purchase and are stated at estimated fair value, which approximates cost. Cash is maintained at multiple high-credit quality financial institutions.

Short-Term Marketable Securities

Short-term marketable securities include investment-grade time deposits, commercial paper and government securities with maturities greater than three months but less than twelve months. These securities are classified as available-for-sale and are carried at fair value with net unrealized gains and losses reported as a component of accumulated other comprehensive loss, which is a component of stockholders’ equity. The cost of securities is determined based upon the average cost of the securities sold.

Allowance for Doubtful Accounts

The allowance for doubtful accounts is estimated based on the aging of accounts receivable, reviews of client credit reports, industry trends and economic indicators, as well as reviews of recent payment history for specific customers. The estimate is based largely on a formula-driven calculation but is supplemented with economic indicators and knowledge of potential write-offs of specific client accounts.

Expenditures Billable to Clients

Expenditures billable to clients are primarily comprised of production and media costs that have been incurred but have not yet been billed to clients, as well as fees that have been earned which have not yet been billed to clients. Unbilled amounts are presented in expenditures billable to clients regardless of whether they relate to our fees or production and media costs. A provision is made for unrecoverable costs as deemed appropriate.

Accounts Payable

Accounts payable includes all operating payables, including those related to all media and production costs. These payables are due within one year.

Investments

Our investments in publicly traded companies over which we do not exert a significant influence are classified as available-for-sale. These investments are reported at fair value based on quoted market prices with net unrealized gains and losses reported as a component of accumulated other comprehensive loss. Our non-publicly traded investments and all other publicly traded investments, including investments to fund certain deferred compensation and retirement obligations, are accounted for using the equity method or cost method. We do not disclose the fair value for equity method investments or investments held at cost as it is not practical to estimate fair value since there is no readily available market data and it is cost prohibitive to obtain independent valuations. We regularly review our equity and cost method investments to determine whether a significant event or change in circumstances has occurred that may impact the fair value of each investment. In the event a decline in fair value of an investment occurs, we determine if the decline has been other-than-temporary. We consider our investments strategic and long-term in nature, so we determine if the fair value decline is recoverable within a reasonable period. For our investments, we evaluate fair value based on specific information (valuation methodologies, estimates of appraisals, financial statements, etc.) in addition to quoted market price, if available. We consider all known quantitative and qualitative factors in determining if an other-than-temporary decline in value of an investment has occurred.

Derivatives

We are exposed to market risk related to interest rates, foreign currency rates and certain balance sheet items. From time to time we enter into derivative instruments for risk management purposes, and not for speculative purposes. We evaluate the terms of our derivative instruments to determine if they are recorded on our balance sheet in equity or as an asset or liability that gets subsequently adjusted in earnings based on fair value each reporting period. We evaluate our derivative instruments for hedge accounting both at inception and throughout the hedge period. We recognize the changes in fair value of the interest rate swap agreements as well as the changes in the fair value of the underlying debt in other income, net.

Furniture, Equipment and Leasehold Improvements

Furniture, equipment and leasehold improvements are stated at cost, net of accumulated depreciation. Furniture and equipment are depreciated generally using the straight-line method over the estimated useful lives of the related assets, which range from 3 to 7 years for furniture, equipment and computer software costs, 10 to 35 years for buildings and the shorter of the useful life or the remaining lease term for leasehold improvements.

Goodwill and Other Intangible Assets

We have accounted for our business combinations using the acquisition accounting method beginning in 2009, while we utilized the purchase accounting method in prior years. Both accounting methods require the fair value of each acquisition to be allocated to the underlying net assets based on their respective estimated fair values and the remainder allocated to goodwill and other intangible assets. The acquisition method requires the noncontrolling interests, if any, to be recorded at fair value and goodwill and other intangibles to be recorded as if we acquired the entire business, proportionately allocated between the controlling and noncontrolling owner. The purchase accounting method required goodwill and other intangibles to be recorded based on our ownership interest in the business we acquired. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment and involves the use of significant estimates, including projections of future cash inflows and outflows, discount rates, asset lives and market multiples. Considering the characteristics of advertising, specialized marketing and communication services companies, our acquisitions usually do not have significant amounts of tangible assets, as the principal asset we typically acquire is creative talent. As a result, a substantial portion of the purchase price is allocated to goodwill and other intangible assets.

We review goodwill and other intangible assets with indefinite lives not subject to amortization as of October 1^st each year and whenever events or significant changes in circumstances indicate that the carrying value may not be recoverable. We evaluate the recoverability of goodwill at a reporting unit level. We have 11 reporting units that were subject to the 2011 annual impairment testing. Our reporting unit structure did not change during 2011.

We review intangible assets with definite lives subject to amortization whenever events or circumstances indicate that a carrying amount of an asset may not be recoverable. Recoverability of these assets is determined by comparing the carrying value of these assets to the estimated undiscounted future cash flows expected to be generated by these assets. These assets are impaired when their carrying value exceeds their fair value. Impaired intangible assets with definite lives subject to amortization are written down to their fair value with a charge to expense in the period the impairment is identified. Intangible assets with definite lives are amortized on a straight-line basis with estimated useful lives generally between 7 and 15 years. Events or circumstances that might require impairment testing include the loss of a significant client, the identification of other impaired assets within a reporting unit, loss of key personnel, the disposition of a significant portion of a reporting unit, significant decline in stock price or a significant adverse change in business climate or regulations.

We have adopted new authoritative guidance for goodwill which permits an entity to first assess qualitative factors to determine whether the fair value of a reporting unit is less than its carrying value. Qualitative factors to consider may include macroeconomic conditions, industry and market considerations, cost factors that may have a negative effect on earnings, overall financial performance, and other relevant entity-specific events such as changes in management, key personnel, strategy or customers, as well as contemplation of bankruptcy or pending litigation. If, after assessing the totality of events or circumstances such as those described above, an entity determines that it is "more likely than not" that the fair value of a reporting unit is less than its carrying value, then the entity is required to perform a two-step quantitative impairment test to identify and measure impairment, if necessary. Otherwise, no additional testing is required.

For reporting units not included in the qualitative assessment, or for any reporting units identified in the qualitative assessment as "more likely than not" that the fair value is less than its carrying value, the first step of the quantitative impairment test is performed. The first step of the impairment test is a comparison of the fair value of each reporting unit to its carrying value, including goodwill. The sum of the fair values of all our reporting units is reconciled to our current market capitalization plus an estimated control premium. Goodwill allocated to a reporting unit whose fair value is equal to or greater than its carrying value is not impaired, and no further testing is required. Should the carrying amount for a reporting unit exceed its fair value, then the first step of the impairment test has failed and the magnitude of any goodwill impairment is determined under the second step, which is a comparison of the implied fair value of a reporting unit’s goodwill to its carrying value. Goodwill of a reporting unit is impaired when its carrying value exceeds its implied fair value. Impaired goodwill is written down to its implied fair value with a charge to expense in the period the impairment is identified.

The fair value of a reporting unit for 2011 and 2010 was estimated using a combination of the income approach, which incorporates the use of the discounted cash flow method, and the market approach, which incorporates the use of earnings and revenue multiples based on market data.

Foreign Currencies

The functional currency of our foreign operations is generally their respective local currency. Assets and liabilities are translated at the exchange rates in effect at the balance sheet date and revenues and expenses are translated at the average exchange rates during the period presented. The resulting translation adjustments are recorded as a component of accumulated other comprehensive loss, which is a component of stockholders’ equity. Currency transaction gains or losses arising from transactions in currencies other than the functional currency are included in office and general expenses. Foreign currency transactions resulted in a pre-tax losses of $0.9 in 2011, $0.7 in 2010 and $4.7 in 2009.

We monitor the currencies of countries in which we operate in order to determine if the country should be considered a highly inflationary environment. A currency is determined to be highly inflationary when there is cumulative inflation of approximately 100% or more over a three-year period. If this occurs the functional currency of that country would be changed to our reporting currency, the U.S. dollar, and foreign exchange gains or losses would be recognized on all monetary transactions, assets and liabilities denominated in currencies other than the U.S. dollar until the currency is no longer considered highly inflationary.

Income Taxes

The provision for income taxes includes U.S. federal, state, local and foreign taxes. Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. We evaluate the realizability of our deferred tax assets and establish a valuation allowance when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. We evaluate our tax positions using the “more likely than not” recognition threshold and then apply a measurement assessment to those positions that meet the recognition threshold. We have established tax reserves that we believe to be adequate in relation to the potential for additional assessments in each of the jurisdictions in which we are subject to taxation. We regularly assess the likelihood of additional tax assessments in those jurisdictions and adjust our reserves as additional information or events require.

Redeemable Noncontrolling Interests

Many of our acquisitions include provisions under which the noncontrolling equity owners can require us to purchase additional interests in a subsidiary at their discretion. Payments for these redeemable noncontrolling interests are contingent upon achieving projected operating performance targets and satisfying other conditions specified in the related agreements and are subject to revisions as the earn-out periods progress. We record these redeemable noncontrolling interests in “mezzanine equity” in our Consolidated Balance Sheets. Each reporting period, redeemable noncontrolling interests are reported at their estimated redemption value, but not less than their initial fair value. Any adjustment to the redemption value above initial value prior to exercise will also impact retained earnings or additional paid-in capital, but will not impact net income. Adjustments as a result of currency translation will affect the redeemable noncontrolling interest balance, but do not impact retained earnings or additional paid-in capital.

Earnings Per Share (“EPS”)

Basic EPS available to IPG common stockholders equals net income available to IPG common stockholders divided by the weighted-average number of common shares outstanding for the applicable period. Diluted EPS equals net income available to IPG common stockholders adjusted to exclude, if dilutive, preferred stock dividends, allocation to participating securities, interest expense related to potentially dilutive securities calculated using the effective interest rate method and the benefit from the preferred stock repurchased, divided by the weighted-average number of common shares outstanding, plus any additional common shares that would have been outstanding if potentially dilutive shares had been issued.

Diluted EPS reflect the potential dilution that would occur if certain potentially dilutive securities or debt obligations were exercised or converted into common stock. The potential issuance of common stock is assumed to occur at the beginning of the year (or at the time of issuance of the potentially dilutive instrument, if later) and the incremental shares are included using the treasury stock or “if-converted” method. The proceeds utilized in applying the treasury stock method consist of the amount, if any, to be paid upon exercise and, as it relates to stock-based compensation, the amount of compensation cost attributed to future service not yet recognized and any tax benefits credited to additional paid-in-capital related to the exercise. These proceeds are then assumed to be used to purchase common stock at the average market price of our stock during the period. The incremental shares (difference between the shares assumed to be issued and the shares assumed to be purchased), to the extent they would have been dilutive, are included in the denominator of the diluted EPS calculation.

We may be required to calculate basic EPS using the two-class method, as a result of our redeemable noncontrolling interests. To the extent that the redemption value increases and exceeds the then-current fair value of a redeemable noncontrolling interest, net income available to IPG common stockholders (used to calculate EPS) could be negatively impacted by that increase, subject to certain limitations. The partial or full recovery of these reductions to net income available to IPG common stockholders (used to calculate EPS) is limited to cumulative prior-period reductions. For the years ended December 31, 2011, 2010 and 2009, there was no impact to EPS for adjustments related to our redeemable noncontrolling interests.

Pension and Postretirement Benefits

We have pension and postretirement benefit plans covering certain domestic and international employees. We use various actuarial methods and assumptions in determining our net pension and postretirement benefit costs and obligations, including the discount rate used to determine the present value of future benefits, expected long-term rate of return on plan assets and healthcare cost trend rates. The overfunded or underfunded status of our pension and postretirement benefit plans is recorded on our Consolidated Balance Sheet.

Stock-Based Compensation

Compensation costs related to share-based transactions, including employee stock options, are recognized in the Consolidated Financial Statements based on fair value. Stock-based compensation expense is generally recognized ratably over the requisite service period based on the estimated grant-date fair value, net of estimated forfeitures.

The entire disclosure for all significant accounting policies of the reporting entity.

+ References+ Details

Earnings Per Share (Notes)

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings Per Share

The following sets forth basic and diluted earnings per common share available to IPG common stockholders.



	Years ended December 31,
	2011		2010			2009
Net income available to IPG common stockholders - basic	$	520.7	$	271.2		$	93.6
Adjustments: Effect of dilutive securities
Interest on 4.25% Notes	1.4		1.4			1.4
Interest on 4.75% Notes	4.1		4.0			0.0
Preferred stock dividends	11.6		0.0			0.0
Benefit from preferred stock repurchased ¹	0.0		(21.7		)	0.0
Net income available to IPG common stockholders - diluted	$	537.8	$	254.9		$	95.0


Weighted-average number of common shares outstanding - basic	465.5		473.6			468.2
Add: Effect of dilutive securities
Restricted stock, stock options and other equity awards	9.1		11.3			7.7
4.25% Notes	33.0		32.2			32.2
4.75% Notes	16.5		16.1			0.0
Preferred stock outstanding	16.5		0.0			0.0
Preferred stock repurchased	0.0		8.9			0.0

Weighted-average number of common shares outstanding - diluted	540.6		542.1			508.1


Earnings per share available to IPG common stockholders - basic	$	1.12	$	0.57		$	0.20
Earnings per share available to IPG common stockholders - diluted	$	0.99	$	0.47		$	0.19

For the year ended December 31, 2010, the benefit from the preferred stock repurchased is excluded from net income available to IPG common stockholders for purposes of calculating diluted earnings per share since the associated common shares, if converted, were dilutive. In addition, the benefit is also net of $4.0 of preferred dividends that were declared during the first quarter of 2010 and associated with the preferred stock repurchased.

For the year ended December 31, 2009, we calculated basic EPS using the two-class method. The two-class method was required as our 4.50% Convertible Senior Notes due 2023 (the “4.50% Notes”) qualified as participating securities, having the right to receive dividends or dividend equivalents should dividends be declared on common stock. Under this method, earnings for the period (after deduction for contractual preferred stock dividends) was allocated on a pro-rata basis to the common stockholders and to the holders of participating securities based on their right to receive dividends. We retired the remaining outstanding aggregate principal amount of the 4.50% Notes in the fourth quarter of 2009.

The following table presents the potential shares excluded from the diluted earnings per share calculation because the effect of including these potential shares would be antidilutive.



	Years ended December 31,
	2011	2010	2009
4.75% Notes	0.0	0.0	16.1
4.50% Notes	0.0	0.0	0.6
Preferred stock outstanding	0.0	16.2	38.4
Total	0.0	16.2	55.1
Securities excluded from the diluted earnings per share calculation because the exercise price was greater than the average market price:
Stock options ¹	8.9	15.6	21.2
Warrants²	0.0	0.0	67.9


¹	These options are outstanding at the end of the respective periods. In any period in which the exercise price is less than the average market price, these options have the potential to be dilutive, and application of the treasury stock method would reduce this amount.


²	The potential dilutive impact of the warrants is based upon the difference between the market price of one share of our common stock and the stated exercise prices of the warrants, adjusted to reflect the period during which the warrants were outstanding. The warrants expired in June 2009.

Debt and Credit Arrangements

The entire disclosure for earnings per share.

+ References+ Details

Debt and Credit Arrangements (Notes)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Long-Term Debt

A summary of the carrying amounts and fair values of our long-term debt is listed below.



	Effective Interest Rate		December 31,
			2011				2010
			Book Value		Fair Value ¹		Book Value		Fair Value ¹
7.25% Senior Unsecured Notes due 2011	7.25	%	$	0.0	$	0.0	$	36.3	$	37.0
6.25% Unsecured Notes due 2014 (less unamortized discount of $0.3)	6.29	%	354.3		374.5		353.3		378.0
10.0% Senior Unsecured Notes due 2017 (less unamortized discount of $9.4)	10.38	%	590.6		690.0		589.4		705.0
4.75% Convertible Senior Notes due 2023 (plus unamortized premium of $2.7)	3.50	%	202.7		220.5		205.0		235.0
4.25% Convertible Senior Notes due 2023 (plus unamortized premium of $3.0)	0.58	%	403.0		405.5		417.4		444.4
Other notes payable and capitalized leases			65.1				20.8
Total long-term debt			1,615.7				1,622.2
Less: current portion ²			404.8				38.9
Long-term debt, excluding current portion			$	1,210.9			$	1,583.3


¹	Fair values are derived from trading quotes by institutions making a market in the securities and estimations of value by those institutions using proprietary models.

Annual maturities are scheduled as follows based on the book value as of December 31, 2011.



2012 ¹	$	1.8
2013 ²	16.0
2014	354.4
2015	0.1
2016	0.1
Thereafter	1,243.3
Total long-term debt	$	1,615.7


¹	Holders of our 4.25% Notes may require us to repurchase their notes for cash at par in March 2012. The 4.25% Notes are redeemable in whole or in part at our option beginning March 15, 2012.


²	Holders of our 4.75% Convertible Senior Notes due 2023 (the “4.75% Notes”) may require us to repurchase their notes for cash, stock or a combination, at our election, at par in March 2013.

For those debt securities that have a premium or discount at the time of issuance, we amortize the amount through interest expense based on the maturity date or the first date the holders may require us to repurchase the debt securities, if applicable. A premium would result in a decrease in interest expense and a discount would result in an increase in interest expense in future periods. We also have recorded debt issuance costs related to certain financing transactions in other assets in our Consolidated Balance Sheets, which are also amortized through interest expense. As of December 31, 2011 and 2010, we had unamortized debt issuance costs of $25.5 and $28.3, respectively.

Our debt securities include covenants that, among other things, limit our liens and the liens of our consolidated subsidiaries, but do not require us to maintain any financial ratios or specified levels of net worth or liquidity.

Debt Transactions

7.25% Senior Unsecured Notes due 2011

In August 2011, the remaining $36.3 aggregate principal amount of our 2011 Notes matured, and we paid $37.6 in cash, including accrued and unpaid interest.

Floating Rate Senior Unsecured Notes due 2010

In April 2010, we repurchased $21.4 aggregate principal amount of our Floating Rate Senior Unsecured Notes due 2010 (the "2010 Notes") for $21.5 in cash, which included accrued and unpaid interest. In November 2010, the remaining $192.3 aggregate principal amount of our 2010 Notes matured, and we paid $193.5 in cash, including accrued and unpaid interest.

Convertible Senior Notes

Conversion Features

Our 4.25% Notes and 4.75% Notes (the "Convertible Notes") are convertible into our common stock. The conversion rates of our Convertible Notes are subject to adjustment in specified circumstances, including the payment of cash dividends on our common stock. The conversion rates of our Convertible Notes are also subject to adjustment for certain events arising from stock splits and combinations, stock dividends and certain other actions by us that modify our capital structure. The Convertible Notes provide for an additional “make-whole” adjustment to the conversion rate in the event of a change of control meeting specified conditions.

Our Convertible Notes are convertible at any time if the average price of our common stock for 20 trading days immediately preceding the conversion date is greater than or equal to a specified percentage of the conversion price; this percentage was equal to 116.0% in 2011 and declines 0.5% each year until it reaches 110% at maturity. Each series of our Convertible Notes is also convertible, regardless of the price of our common stock, if: (i) we call that series of Convertible Notes for redemption; (ii) we make specified distributions to shareholders; (iii) we become a party to a consolidation, merger or binding share exchange pursuant to which our common stock would be converted into cash or property (other than securities); or (iv) the credit ratings assigned to that series of Convertible Notes by any two of Moody’s Investor Service, Standard and Poor’s and Fitch Ratings are lower than Ba2, BB and BB, respectively, or that series of Convertible Notes is no longer rated by at least two of these ratings services. As of December 31, 2011, our Convertible Notes were not convertible based on the triggers listed above. As a result of certain conversion features, our Convertible Notes contain embedded derivatives whose fair values as of December 31, 2011 and 2010 were negligible. Our Convertible Notes are also convertible, whether or not the above conditions are met, from February 15, 2023 to March 15, 2023. The Convertible Notes are not considered securities with participation rights in earnings available to IPG common stockholders as there are no features attached to these securities that allow holders to participate in our undistributed earnings.

The conversion rates and corresponding conversion prices for our Convertible Notes as of December 31, 2011, 2010 and 2009 are listed below.



	December 31,
	2011		2010		2009
Conversion price	$	12.13	$	12.42	$	12.42
Conversion rate per note (actual number)	82.4612		80.5153		80.5153

During 2011, the conversion rate for our Convertible Notes was adjusted as a result of the cumulative effect of the cash dividends declared and paid on our common stock, which resulted in a corresponding adjustment of the conversion price.

Repurchase / Redemption Options

Holders of our Convertible Notes may require us to repurchase the Convertible Notes on certain dates for cash only, and on other dates for cash or our common stock or a combination of cash and common stock, at our election. Additionally, investors may require us to repurchase our Convertible Notes in the event of certain change of control events that occur prior to dates listed in the table below, for cash or our common stock or a combination of cash and common stock, at our election. At our option, we may redeem our Convertible Notes on or at any time after certain dates for cash. The redemption price in each of these instances will be 100% of the principal amount of the Convertible Notes being redeemed, plus accrued and unpaid interest, if any. The following table details when the repurchase and redemption options occur for our 4.25% and 4.75% Notes.



	4.25% Notes		4.75% Notes
Repurchase options
For cash on		3/15/2012
For cash, common stock or combination on	1)	3/15/2015	1)	3/15/2013
	2)	3/15/2018	2)	3/15/2018
Change of control events occurring prior to		3/15/2012		3/15/2013
Redemption options
For cash on or after		3/15/2012		3/15/2013

Capped Call

In November 2010, we purchased capped call options to hedge the risk of price appreciation on the shares of our common stock into which our 4.75% Notes are convertible. The strike price and cap price related to the capped call options as of December 31, 2011 and 2010 are listed below.



	December 31,
	2011		2010
Strike price	$	12.13	$	12.42
Cap price	$	17.83	$	18.26

During 2011, the strike price and cap price related to the capped call options were adjusted due to the payment of cash dividends on our common stock. As of December 31, 2011, the options give us the right to purchase up to 16.5 shares of our common stock at the strike price, except that the economic value of the net proceeds of exercising the options will not exceed the difference between the strike price and the cap price. Subject to certain limitations, we may elect settlement of the options to occur in cash or in shares. The options will expire on April 2, 2013. During 2010, we paid an aggregate premium of $22.8 for the options, which was recorded as a reduction to additional paid-in capital in the Consolidated Balance Sheet.

Credit Agreements

We maintain a committed corporate credit facility and uncommitted credit facilities with various banks that permit borrowings at variable interest rates. As of December 31, 2011 and 2010, there were no borrowings under our committed corporate credit facility. However, there were borrowings under the uncommitted facilities made by several of our international subsidiaries. We have guaranteed the repayment of some of these borrowings made by certain subsidiaries. The weighted-average interest rate on outstanding balances under the uncommitted credit facilities as of December 31, 2011 and 2010 was approximately 5.0%.

A summary of our credit facilities is presented below.



	December 31,
	2011								2010
	Total Facility		Amount Outstanding		Letters of Credit		Total Available		Total Facility		Amount Outstanding		Letters of Credit		Total Available
Committed credit agreement	$	1,000.0	$	0.0	$	16.2	$	983.8	$	650.0	$	0.0	$	16.2	$	633.8
Uncommitted credit agreements	$	458.3	$	153.5	$	2.6	$	302.2	$	455.2	$	114.8	$	0.1	$	340.3

In May 2011, we entered into an amendment and restatement of our credit agreement originally dated as of July 18, 2008 (the “Credit Agreement”), increasing the commitments of the lenders to $1,000.0 from $650.0, and extending the Credit Agreement's expiration to May 31, 2016. Additionally, the amendments modified our financial covenants, and provided additional flexibility with respect to, or eliminated, certain covenants such as restrictions on acquisitions, capital expenditures and restricted payments. In addition, the cost structure was reduced. The Credit Agreement is a revolving facility under which amounts borrowed by us or any of our subsidiaries designated under the Credit Agreement may be repaid and reborrowed, subject to an aggregate lending limit of $1,000.0 or the equivalent in other currencies. The aggregate available amount of letters of credit outstanding may decrease or increase, subject to a sublimit on letters of credit of $200.0 or the equivalent in other currencies. Our obligations under the Credit Agreement are unsecured.

Under the Credit Agreement, we can elect to receive advances bearing interest based on either the base rate or the Eurocurrency rate (each as defined in the Credit Agreement) plus an applicable margin that is determined based on our credit ratings. As of December 31, 2011, the applicable margin is 0.40% for base rate advances and 1.40% for Eurocurrency rate advances. Letter of credit fees accrue on the average daily aggregate amount of letters of credit outstanding, at a rate equal to the applicable margin for Eurocurrency rate advances, and fronting fees accrue on the aggregate amount of letters of credit outstanding at an annual rate of 0.25%. We also pay a facility fee at an annual rate of 0.35% on the aggregate lending commitment under the Credit Agreement.

The Credit Agreement includes covenants that, among other things, limit our liens and the liens of our consolidated subsidiaries and limit subsidiary debt, as well as financial covenants. The financial covenants in the Credit Agreement require that we maintain, as of the end of each fiscal quarter, certain financial measures for the four quarters then ended. The table below sets forth the financial covenants in effect as of December 31, 2011 and thereafter.



Interest coverage ratio (not less than): ¹		5.00x
Leverage ratio (not greater than): ²		2.75x


¹	The interest coverage ratio is defined as EBITDA, as defined in the Credit Agreement, to net interest expense plus cash dividends on convertible preferred stock for the four quarters then ended.


²	The leverage ratio is defined as debt as of the last day of such fiscal quarter to EBITDA, as defined in the Credit Agreement, for the four quarters then ended.

We were in compliance with all of our covenants in the Credit Agreement as of December 31, 2011.

Cash Pooling

We aggregate our net domestic cash position on a daily basis. Outside the United States we use cash pooling arrangements with banks to help manage our liquidity requirements. In these pooling arrangements, several IPG agencies agree with a single bank that the cash balances of any of the agencies with the bank will be subject to a full right of set-off against amounts the other agencies owe the bank, and the bank provides for overdrafts as long as the net balance for all the agencies does not exceed an agreed-upon level. Typically, each agency pays interest on outstanding overdrafts and receives interest on cash balances. Our Consolidated Balance Sheets reflect cash, net of bank overdrafts, under all of our pooling arrangements, and as of December 31, 2011 and 2010 the amounts netted were $1,106.6 and $916.1, respectively.

Features of Convertible Preferred Stock [Abstract]

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References+ Details

Convertible Preferred Stock

12 Months Ended

Dec. 31, 2011

Preferred Stock

Convertible Preferred Stock

Each share of our 5¹/4% Series B Cumulative Convertible Perpetual Preferred Stock (the “Series B Preferred Stock”) has a liquidation preference of $1,000 per share and is convertible at the option of the holder at any time into shares of our common stock, subject to adjustment upon the occurrence of certain events, including the payment of cash dividends on our common stock. Beginning October 15, 2010, each share of the Series B Preferred Stock may be converted at our option if the closing price of our common stock multiplied by the conversion rate in effect at that time equals or exceeds 130% of the liquidation preference for 20 trading days during any consecutive 30 trading day period. Holders of the Series B Preferred Stock will be entitled to an adjustment to the conversion rate if they convert their shares in connection with a fundamental change satisfying certain specified conditions. The Series B Preferred Stock is junior to all of our existing and future debt obligations and senior to our common stock with respect to payments of dividends and rights upon liquidation, winding up or dissolution, to the extent of the liquidation preference.

The number of shares outstanding, conversion rates and corresponding conversion prices for our Series B Preferred Stock as of December 31, 2011, 2010 and 2009 are listed below.



	December 31,
	2011		2010		2009
Shares outstanding (actual number)	221,474		221,474		525,000
Conversion rate per share	74.4500		73.1904		73.1904
Conversion price	$	13.43	$	13.66	$	13.66

During 2011, the conversion rate for our Series B Preferred Stock was adjusted as a result of the cumulative effect of certain cash dividends declared and paid on our common stock during the year, which resulted in a corresponding adjustment of the conversion price. In 2010, we launched a tender offer and purchased 303,526 shares (actual number) of our Series B Preferred Stock for cash for an aggregate purchase price of $267.6. The aggregate purchase price was calculated as the number of shares tendered multiplied by the purchase price of $869.86 per share plus unpaid dividends of $1.9, which were prorated for the period the tendered shares were outstanding, and transaction costs directly associated with the repurchase. The carrying value of the tendered shares was $293.3 and was determined based on the number of shares tendered multiplied by the liquidation preference, less the pro-rata amount of issuance costs associated with the original issuance of the preferred stock. A benefit of $25.7, representing the excess carrying value of the tendered shares over consideration from the repurchase, was recorded as an adjustment to additional paid-in capital. Additionally, the pro-rata amount of issuance costs of $10.2 was recorded as an adjustment to additional paid-in capital.

The terms of our Series B Preferred Stock do not permit us to pay dividends on our common stock unless all accumulated and unpaid dividends on the Series B Preferred Stock have been or contemporaneously are declared and paid, or provision for the payment thereof has been made. We declared annual dividends of $52.50 per share, or $11.6, $15.6 and $27.6, on our Series B Preferred Stock during 2011, 2010 and 2009, respectively. Dividends on each share of Series B Preferred Stock are payable quarterly in cash or, if certain conditions are met, in common stock, at our option on January 15, April 15, July 15 and October 15, or the next business date if these dates fall on the weekend or a holiday, of each year. Dividends on our Series B Preferred Stock are cumulative from the date of issuance and are payable on each payment date to the extent that we have assets that are legally available to pay dividends and our Board of Directors, or an authorized committee of our Board, declares a dividend payable.

The terms of the Series B Preferred Stock include an embedded derivative instrument, the fair value of which as of December 31, 2011 and 2010 was negligible. The Series B Preferred Stock is not considered a security with participation rights in earnings available to IPG common stockholders due to the contingent nature of the conversion feature of these securities.

Acquisitions (Notes)

12 Months Ended

Dec. 31, 2011

Business Combinations [Abstract]

Acquisitions

We continue to evaluate strategic opportunities to grow and to increase our ownership interests in current investments, particularly in our digital and marketing services offerings, and to expand our presence in high-growth and key strategic world markets. Our acquisitions typically provide for an initial payment at the time of closing and additional contingent purchase price payments based on the future performance of the acquired entity. In addition, we have entered into agreements that may require us to purchase additional equity interests in certain consolidated and unconsolidated subsidiaries. The amounts at which we record these transactions in our financial statements are based on estimates of the future financial performance of the acquired entity, the timing of the exercise of these rights, changes in foreign currency exchange rates and other factors.

For acquisitions that were completed on or after January 1, 2009, we record deferred payment and redeemable noncontrolling interest amounts on our Consolidated Balance Sheets based on their acquisition-date fair value. Deferred payments are adjusted quarterly based on their estimated fair value with any changes impacting operating income. Deferred payments are recorded on a discounted basis and the related accretion expense is recognized in operating income between the acquisition date and the deferred payment date. Redeemable noncontrolling interests are adjusted quarterly with any changes impacting additional paid-in capital or retained earnings. See Note 14 for further information on contingent acquisition obligations. For acquisitions completed prior to January 1, 2009, contingent acquisition obligations were not recorded on our Consolidated Balance Sheets until the obligation was satisfied and consideration was determinable and distributable. At that point, we recorded the fair value of this consideration as an additional cost of the acquired entity. Certain acquisitions contained deferred payments that were fixed and determinable on the acquisition date. In such cases, we recognized this consideration as an additional cost of the acquired entity on the acquisition date and recorded a liability for the future payment.

The following table presents changes in our redeemable noncontrolling interests.



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	291.2		$	277.8		$	288.4
Change in related noncontrolling interest balance	(7.7		)	1.5			2.5
Changes in redemption value of redeemable noncontrolling interests:
Additions	17.9			31.9			0.5
Redemptions and reclassifications	(70.7		)	(30.1		)	(5.3		)
Redemption value adjustments¹	12.7			10.1			(8.3		)
Balance at end of period	$	243.4		$	291.2		$	277.8


¹	Redeemable noncontrolling interests are reported at their estimated redemption value in each reporting period, but not less than their initial fair value. Any adjustment to the redemption value impacts retained earnings or additional paid-in capital, except adjustments as a result of currency translation.

During 2011, we completed twenty-two acquisitions, which included purchases of controlling interests in previously unconsolidated subsidiaries. Of these acquisitions, eighteen are included in the Integrated Agency Networks (“IAN”) operating segment and four are included in the Constituency Management Group (“CMG”) operating segment. All acquired agencies have been integrated into one of our global networks or existing agencies. The most significant acquisitions included full service creative agencies in Australia, a public relations firm in Brazil, digital and direct marketing agencies in the United Kingdom, a healthcare communications firm in Germany and a social media agency in the United States. During 2011, we recorded approximately $133.0 of goodwill and intangible assets related to these acquisitions during the year.

During 2010, we completed five acquisitions, of which four were included in the IAN operating segment and one was included in the CMG operating segment. The most significant acquisitions included a premier full-service communications agency in the United Kingdom and a media and digital marketing service company in Brazil. During 2010, we recorded approximately $63.0 of goodwill and intangible assets related to these acquisitions during this period.

During 2009, we completed two acquisitions, both of which were included in the IAN operating segment.

For companies acquired, we make estimates of the fair values of the assets and liabilities for consolidation. The purchase price in excess of the estimated fair value of the tangible net assets acquired is allocated to identifiable intangible assets and goodwill. Due to the characteristics of advertising, specialized marketing and communication services companies, our acquisitions typically do not have significant amounts of tangible assets, as the principal asset we typically acquire is creative talent. As a result, a substantial portion of the purchase price of these acquisitions is allocated to identifiable intangible assets, primarily customer lists and trade names, and goodwill.

For all of our acquisitions, if deferred payments and purchases of additional interests after the effective date of purchase are contingent upon the future employment of the former owners, then we recognize these payments as compensation expense. Compensation expense is determined based on the terms and conditions of the respective acquisition agreements and employment terms of the former owners of the acquired businesses. This future expense will not be allocated to the assets and liabilities acquired and is amortized over the required employment terms of the former owners.

The results of operations of our acquired companies were included in our consolidated results from the closing date of each acquisition. We did not make any stock payments related to our acquisitions in 2011, 2010 or 2009.

Details of cash paid for current and prior years' acquisitions are listed below.



	Years ended December 31,
	2011			2010			2009
Cost of investment: current-year acquisitions	$	48.0		$	47.1		$	3.8
Cost of investment: prior-year acquisitions	105.1			49.6			74.6
Less: net cash acquired	(18.5		)	(5.3		)	(0.1		)
Total cost of investment ¹	134.6			91.4			78.3
Operating expense²	0.5			3.0			0.0

Total cash paid for acquisitions	$	135.1		$	94.4		$	78.3

Of the total cash paid, $71.5, $29.5 and $5.9 for the years ended December 31, 2011, 2010 and 2009, respectively, are classified under the financing section of the Consolidated Statements of Cash Flows within acquisition-related payments. These transactions relate to increases in our ownership interests in our consolidated subsidiaries as well as deferred payments for acquisitions that closed on or after January 1, 2009. Of the total cash paid, $63.1, $61.9 and $72.4 for the years ended December 31, 2011, 2010 and 2009, respectively, are classified under the investing section of the Consolidated Statements of Cash Flows within acquisitions, including deferred payments, net of cash acquired. These transactions relate to initial payments for new transactions and deferred payments for acquisitions that closed prior to January 1, 2009.


²	Represents cash payments made that were either in excess of the contractual value or contingent upon the future employment of the former owners of acquired companies.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Goodwill and Intangible Assets Disclosure [Abstract]

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-Name Emerging Issues Task Force (EITF)

-Number 88-16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51, 52

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-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Appendix F

-Paragraph F4

-Subparagraph e

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+ Details

Supplementary Data (Notes)

12 Months Ended

Dec. 31, 2011

Supplementary Data [Abstract]

Supplementary Data

Valuation and Qualifying Accounts – Allowance for Uncollectible Accounts Receivable



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	63.1		$	66.0		$	63.9
Charges to costs and expenses	10.4			10.7			19.3
Reversals to other accounts¹	(0.5		)	(0.4		)	(2.8		)
Deductions:
Dispositions	0.0			(0.5		)	(0.2		)
Uncollectible accounts written off	(16.3		)	(11.8		)	(16.5		)
Foreign currency translation adjustment	(1.3		)	(0.9		)	2.3
Balance at end of period	$	55.4		$	63.1		$	66.0


¹	Amounts relate to allowance for doubtful accounts of acquired and newly consolidated companies, miscellaneous other amounts

Furniture, Equipment and Leasehold Improvements, net



	December 31,
	2011			2010
Furniture and equipment	$	881.5		$	881.5
Leasehold improvements	593.0			605.4
Land and buildings	111.6			114.5
	1,586.1			1,601.4
Less: accumulated depreciation	(1,126.3		)	(1,147.1		)
Total furniture, equipment and leasehold improvements, net	$	459.8		$	454.3

The total depreciation and amortization expense for the years ended December 31, 2011, 2010 and 2009 was $130.7, $129.0 and $150.6, respectively.

Accrued Liabilities

The following table presents the components of accrued liabilities.



	December 31,
	2011		2010
Salaries, benefits and related expenses	$	520.6	$	470.0
Office and related expenses	57.9		62.0
Acquisition obligations	43.7		63.5
Interest	40.3		41.5
Professional fees	25.3		24.6
Other	139.3		118.9
Total accrued liabilities	$	827.1	$	780.5

2004 Restatement Liabilities

As part of the 2004 Restatement, we recognized liabilities related to vendor discounts and credits where we had a contractual or legal obligation to rebate such amounts to our clients or vendors. Reductions to these liabilities are achieved through settlements with clients and vendors, but also may occur if the applicable statute of limitations in a jurisdiction has lapsed. As of December 31, 2011 and 2010, we had vendor discounts and credit liabilities of $55.5 and $82.5, respectively, related to the 2004 Restatement.

Share Repurchase Program

In February 2011, our Board of Directors (the “Board”) authorized a program to repurchase from time to time up to $300.0 of our common stock (the "2011 share repurchase program"). In August 2011, the Board authorized an increase in the amount available under our 2011 share repurchase program up to $450.0 of our common stock. We may effect such repurchases through open market purchases, trading plans established in accordance with SEC rules, derivative transactions or other means. We expect to continue to repurchase our common stock in future periods, although the timing and amount of the repurchases will depend on market conditions and our other funding requirements. The share repurchase program has no expiration date.

Since the inception of our share repurchase program we have repurchased 41.7 shares that have settled through December 31, 2011, at an average price of $9.62 per share and an aggregate cost of $400.8, including fees.

Other Income, net

Results of operations include certain items which are not directly associated with our revenue-producing operations.



	Years ended December 31,
	2011		2010			2009
Gains on sales of businesses and investments	$	125.9	$	4.3		$	10.2
Net loss on early extinguishment of debt	0.0		(0.1		)	(25.1		)
Vendor discounts and credit adjustments	19.4		12.7			24.4
Other income (expense), net	4.9		(4.0		)	2.2
Total other income (expense), net	$	150.2	$	12.9		$	11.7

Sales of Businesses and Investments – This item primarily includes realized gains and losses relating to the sales of businesses and investments, cumulative translation adjustment balances from the liquidation of entities and sales of marketable securities and investments in publicly traded and privately held companies in our Rabbi Trusts. During 2011, we received net proceeds of $133.5 from the sale of approximately half of our holdings in Facebook, Inc. (the "Facebook transaction"), a cost-method investment, and recorded a pre-tax gain of $132.2. Additionally, during 2011, we recognized a loss relating to the sale of a business in the domestic market within our IAN segment. During 2010, we recognized a gain relating to the sale of a business in the domestic market within our CMG segment, which was partially offset by a loss recognized relating to the sale of one our European businesses within our IAN segment. During 2009, we realized a gain relating to the sale of an investment in our Rabbi Trusts, which was partially offset by losses realized from the sale of various businesses.

Net Loss on Early Extinguishment of Debt – During 2009, we recorded a net charge of $25.1 primarily related to the settlement of our tender offers for certain outstanding debt securities.

Vendor Discounts and Credit Adjustments – We are in the process of settling our liabilities related to vendor discounts and credits established as part of the 2004 Restatement. These adjustments reflect the reversal of certain of these liabilities as a result of settlements with clients or vendors or where the statute of limitations has lapsed.

Supplemental Cash Flow Information



	Years ended December 31,
	2011		2010		2009
Cash paid for interest	$	138.9	$	139.8	$	138.6
Cash paid for income taxes, net of refunds ¹	102.0		87.3		57.3


¹	Refunds of $25.4, $28.7 and $55.0 were received for the years ended December 31, 2011, 2010 and 2009, respectively.

Intangible Assets

12 Months Ended

Dec. 31, 2011

Goodwill and Intangible Assets

Intangible Assets

Goodwill

Goodwill is the excess purchase price remaining from an acquisition after an allocation of purchase price has been made to identifiable assets acquired and liabilities assumed based on estimated fair values. The changes in the carrying value of goodwill for our segments, IAN and CMG, for the years ended December 31, 2011 and 2010 are listed below.



	IAN			CMG			Total ¹
Balance as of December 31, 2009	$	2,844.7		$	476.3		$	3,321.0
Current year acquisitions	37.5			1.3			38.8
Contingent and deferred payments for prior acquisitions	34.4			0.7			35.1
Other ²	(10.6		)	(15.8		)	(26.4		)
Balance as of December 31, 2010	$	2,906.0		$	462.5		$	3,368.5
Current year acquisitions	68.5			28.4			96.9
Contingent and deferred payments for prior acquisitions	0.8			0.0			0.8
Other ²	(22.4		)	0.5			(21.9		)
Balance as of December 31, 2011	$	2,952.9		$	491.4		$	3,444.3


¹	For all periods presented we have not recorded a goodwill impairment charge.


²	Primarily includes foreign currency translation adjustments.

See Note 1 for information regarding our annual impairment methodology.

Other Intangible Assets

Other intangible assets are comprised of assets with indefinite lives not subject to amortization and assets with definite lives subject to amortization. Other intangible assets primarily consist of customer lists and trade names, which have definitive lives and are subject to amortization on a straight-line basis with estimated useful lives generally between 7 and 15 years. Amortization expense for other intangible assets for the years ended December 31, 2011, 2010 and 2009 was $20.2, $19.4 and $19.3, respectively. The following table provides a summary of other intangible assets, which are included in other assets on our Consolidated Balance Sheets.



	December 31,
	2011							2010
	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists	$	165.9	$	(81.7	)	$	84.2	$	147.0	$	(69.0	)	$	78.0
Trade names	52.9		(12.3		)	40.6		45.1		(9.7		)	35.4
Other	17.3		(7.8		)	9.5		17.4		(7.7		)	9.7
Total	$	236.1	$	(101.8	)	$	134.3	$	209.5	$	(86.4	)	$	123.1

The estimated annual amortization expense for other intangible assets for the next five years as of December 31, 2011 is listed below.



	2012		2013		2014		2015		2016
Estimated amortization expense	$	26.9	$	26.8	$	24.3	$	16.4	$	5.5

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References+ Details

Income Taxes (Notes)

12 Months Ended

Dec. 31, 2011

Income Tax Disclosure [Abstract]

Income Taxes

The components of income before income taxes, equity earnings and the impact of noncontrolling interests are listed below.



	Years ended December 31,
	2011		2010		2009
Domestic	$	428.4	$	216.2	$	141.9
Foreign	310.0		234.4		90.5
Total	$	738.4	$	450.6	$	232.4

The provision for income taxes is listed below.



	Years ended December 31,
	2011			2010			2009
U.S. federal income taxes (including foreign withholding taxes):
Current	$	0.9		$	13.7		$	(48.4	)
Deferred	92.3			60.2			38.7
	93.2			73.9			(9.7		)
State and local income taxes:
Current	12.3			16.8			(6.1		)
Deferred	11.3			(0.1		)	40.1
	23.6			16.7			34.0
Foreign income taxes:
Current	93.1			84.8			55.4
Deferred	(19.7		)	(4.1		)	10.4
	73.4			80.7			65.8
Total	$	190.2		$	171.3		$	90.1

A reconciliation of the effective income tax rate before equity earnings and the impact of noncontrolling interests as reflected in the Consolidated Statements of Operations to the U.S. federal statutory income tax rate is listed below.



	Years ended December 31,
	2011			2010			2009
U.S. federal statutory income tax rate	35.0		%	35.0		%	35.0		%

Income tax provision at U.S. federal statutory rate	$	258.4		$	157.7		$	81.3
State and local income taxes, net of federal income tax benefit	15.3			10.8			22.1
Impact of foreign operations, including withholding taxes	(21.9		)	4.7			26.9
Change in net valuation allowance ¹	(32.9		)	(2.4		)	12.4
Worthless securities deduction	(23.0		)	(2.5		)	(2.3		)
(Decreases) increases in unrecognized tax benefits, net	(2.7		)	8.9			(55.6		)
Stock based compensation	0.2			0.2			16.4
Other	(3.2		)	(6.1		)	(11.1		)
Provision for income taxes	$	190.2		$	171.3		$	90.1
Effective income tax rate on operations	25.8		%	38.0		%	38.8		%


¹	Reflects changes in valuation allowance that impacted the effective income tax rate for each year presented.

In 2011, our effective income tax rate of 25.8% was positively impacted primarily from the utilization of capital losses to offset nearly all of the $132.2 capital gain realized from the Facebook transaction. The capital gain enabled us to use capital loss carryforwards, on which a 100% valuation allowance had been previously established, and capital losses attributable to worthless securities in a consolidated subsidiary. Additionally, our effective income tax rate was positively impacted by the recognition of previously unrecognized tax benefits as a result of the effective settlement of the 2007-2008 IRS audit cycle, a lower effective income tax rate on non-U.S. operations and the net reversal of valuation allowances, primarily in Europe. The effective income tax rate was negatively impacted by state and local taxes and losses in certain foreign locations where we receive no tax benefit due to 100% valuation allowances.

The components of deferred tax assets and liabilities are listed below.



	December 31,
	2011			2010
Postretirement/post-employment benefits	$	42.4		$	34.5
Deferred compensation	205.2			192.3
Pension costs	14.2			23.9
Basis differences in fixed assets	81.8			83.0
Rent	38.6			15.2
Interest	54.8			51.1
Accruals and reserves	55.6			42.0
Allowance for doubtful accounts	8.1			10.6
Basis differences in intangible assets	(330.1		)	(263.3		)
Investments in equity securities	30.8			5.3
Tax loss/tax credit carry forwards	478.1			621.5
Restructuring and other reorganization-related costs	2.0			2.7
Other	92.2			55.6
Total deferred tax assets, net	773.7			874.4
Valuation allowance	(489.9		)	(508.1		)
Net deferred tax assets	$	283.8		$	366.3

We evaluate the realizability of our deferred tax assets on a quarterly basis. A valuation allowance is established when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. In circumstances where there is negative evidence, establishment of a valuation allowance is considered. We believe that cumulative losses in the most recent three-year period represent significant negative evidence, and as a result, we determined that certain of our deferred tax assets required the establishment of a valuation allowance. The realization of our deferred tax assets is primarily dependent on future earnings. The amount of the deferred tax assets considered realizable could be reduced in the near future if estimates of future taxable income are lower than anticipated. The deferred tax assets for which an allowance was recognized relate primarily to tax credit carryforwards, state and foreign tax loss carryforwards and in 2010, U.S. capital loss carryforwards.

The change in the valuation allowance is listed below.



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	508.1		$	425.5		$	379.5
(Reversed) charged to costs and expenses	(25.1		)	92.3			24.7
Charged (reversed) to gross tax assets and other accounts	6.9			(9.7		)	21.3
Balance at end of period	$	489.9		$	508.1		$	425.5

In 2011, amounts reversed to costs and expenses relate primarily to the utilization of capital loss carryforwards on which a 100% valuation allowance had been previously established, the expiration of foreign tax credits on which a 100% valuation allowance had been established and the net reversal of valuation allowance based on positive evidence in the form of a sustained pattern of profitability; These reversals were partially offset by the establishment of an additional deferred tax asset and a corresponding valuation allowance for a Luxembourg tax loss carryforward.

In 2010, amounts charged to costs and expenses primarily relate to the establishment of a deferred tax asset and a corresponding valuation allowance for a Luxembourg tax loss carryforward, which were first available for effective utilization in 2011. This resulted from restructuring due to a tax law change in Luxembourg. Amounts reversed to gross tax assets and other accounts relate primarily to the effect of foreign currency translation.

In 2009, amounts charged to costs and expenses primarily relate to the establishment of valuation allowances in the Asia Pacific region, where we believe that it is no longer “more likely than not” that the corresponding tax losses will be utilized, based on significant negative evidence in the form of the deterioration of business operations and a short carryforward period in which tax losses must be utilized.

As of December 31, 2011, there are $32.9 of tax credit carryforwards that expire in 2013. There are also $1,413.5 of loss carryforwards, of which $58.4 are U.S. tax loss carryforwards that expire in the years 2029 through 2030. The remaining $1,355.1 are non-U.S. tax loss carryforwards, of which $1,094.3 have unlimited carryforward periods and $260.8 have expiration periods from 2012 through 2030.

As of December 31, 2011 and 2010, we had $1,766.7 and $1,547.1, respectively, of undistributed earnings attributable to foreign subsidiaries. It is our intention to permanently reinvest undistributed earnings of our foreign subsidiaries. We have not provided deferred U.S. income taxes or foreign withholding taxes on temporary differences resulting from earnings for certain foreign subsidiaries which are permanently reinvested outside the U.S. It is not practicable to determine the amount of unrecognized deferred tax liability associated with these temporary differences.

The table below summarizes the activity related to our unrecognized tax benefits.



	December 31,
	2011			2010			2009
Balance at beginning of period	$	146.7		$	160.5		$	174.9
Increases as a result of tax positions taken during a prior year	5.3			4.6			7.8
Decreases as a result of tax positions taken during a prior year	(18.1		)	(28.1		)	(50.9		)
Settlements with taxing authorities	(5.0		)	(10.2		)	0.0
Lapse of statutes of limitation	(0.2		)	(0.6		)	(5.0		)
Increases as a result of tax positions taken during the current year	32.3			20.5			33.7
Balance at end of period	$	161.0		$	146.7		$	160.5

Included in the total amount of unrecognized tax benefits of $161.0 as of December 31, 2011, is $160.1 of tax benefits that, if recognized, would impact the effective income tax rate. The total amount of accrued interest and penalties as of December 31, 2011 and 2010 is $12.1 and $11.9, respectively, of which a detriment of $0.2 and a benefit of $5.0 is included in the 2011 and 2010 Consolidated Statements of Operations, respectively. In accordance with our accounting policy, interest and penalties accrued on unrecognized tax benefits are classified as income taxes in the Consolidated Statements of Operations.

In 2011, we effectively settled the 2007-2008 IRS audit cycle. The settlement resulted in no cash payment and our effective income tax rate was positively impacted by the recognition of previously unrecognized tax benefits.

We have various tax years under examination by tax authorities in various countries and in various states, such as New York, in which we have significant business operations. It is not yet known whether these examinations will, in the aggregate, result in our paying additional taxes. We believe our tax reserves are adequate in relation to the potential for additional assessments in each of the jurisdictions in which we are subject to taxation. We regularly assess the likelihood of additional tax assessments in those jurisdictions and, if necessary, adjust our reserves as additional information or events require.

With respect to all tax years open to examination by U.S. federal, various state and local, and non-U.S. tax authorities, we currently anticipate that total unrecognized tax benefits will decrease by an amount between $5.0 and $15.0 in the next twelve months, a portion of which will affect our effective income tax rate, primarily as a result of the settlement of tax examinations and the lapsing of statutes of limitations. This net decrease is related to various items of income and expense, primarily attributable to transfer pricing adjustments.

We are effectively settled with respect to U.S. federal income tax audits for years prior to 2009. With limited exceptions, we are no longer subject to state and local income tax audits for years prior to 1999, or non-U.S. income tax audits for years prior to 2004.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Accumulated Other Comprehensive Loss, net of tax [Abstract]

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Article 4

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-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 136, 172

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 43, 44, 45, 46, 47, 48, 49

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+ Details

Accumulated Other Comprehensive Loss (Notes)

12 Months Ended

Dec. 31, 2011

Accumulated Other Comprehensive Loss, net of tax

Comprehensive Loss, net of tax

The components of accumulated other comprehensive loss, net of tax are listed below.



	December 31,
	2011			2010			2009
Foreign currency translation adjustment	$	(140.9	)	$	(51.3	)	$	(85.3	)
Unrecognized losses, transition obligation and prior service cost	(85.0		)	(67.7		)	(90.9		)
Net unrealized holding gains (losses) on securities	0.2			0.0			(0.4		)
Accumulated other comprehensive loss, net of tax	$	(225.7	)	$	(119.0	)	$	(176.6	)

The entire disclosure for comprehensive income. Includes, but is not limited to, the following: 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]

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+ Details

Incentive Compensation Plans (Notes)

12 Months Ended

Dec. 31, 2011

Incentive Compensation Plans

2009 Performance Incentive Plan

We issue stock and cash-based incentive awards to our employees under a plan established by the Compensation and Leadership Talent Committee of the Board of Directors (the “Compensation Committee”) and approved by our shareholders. In May 2009, our shareholders approved the 2009 Performance Incentive Plan (the “2009 PIP”), which replaced previous incentive plans. The number of shares of common stock initially available for granting new stock options and stock appreciation rights under the 2009 PIP was 8.1. The number of shares of common stock initially available for performance-based awards and other stock-based awards under the 2009 PIP was 26.5. Subject to the terms of the 2009 PIP, there are limits on the number of shares that may be awarded to any one participant for each type of award. The vesting period of awards granted is generally commensurate with the requisite service period. We generally issue new shares to satisfy the exercise of stock options or the distribution of other stock-based awards.

Additionally, under the 2009 PIP, we are able to grant performance cash awards. The performance cash awards are granted to certain employees who otherwise would have been eligible to receive performance-based stock awards. These awards have a service period vesting condition and a performance vesting condition. The amount of the performance cash award received by an employee with a performance vesting condition can range from 0% to 200% of the target amount of the original grant value. Performance cash awards generally vest in three years. A committee of the Board of Directors may grant performance cash awards to any eligible employee; however, no employee can receive more than $6.0 during a performance period. Performance cash awards may be settled in shares on the vest date. The number of shares to be settled on the vesting date will be calculated as the cash value adjusted for performance divided by our stock price on the vesting date.

The amount of stock-based compensation expense as reflected in salaries and related expenses in our Consolidated Statement of Operations, and the related tax benefit are listed below.



	Years ended December 31,
	2011		2010		2009
Stock options	$	6.7	$	7.4	$	10.2
Stock-settled awards	21.9		32.7		34.2
Cash-settled awards	5.7		10.9		9.3
Performance-based awards	23.3		11.0		6.4
Employee stock purchase plan	0.7		0.5		0.7
Other ¹	4.1		4.3		1.5
Stock-based compensation expense	$	62.4	$	66.8	$	62.3
Tax benefit	$	22.1	$	22.1	$	21.5


1	Represents charges recorded for severance expense related to stock-based compensation awards.

Stock Options

Stock options are granted with the exercise price equal to the fair market value of our common stock on the grant date. They are generally exercisable between two and four years from the grant date and expire ten years from the grant date (or earlier in the case of certain terminations of employment).

The following tables are a summary of stock option activity during 2011.



	Options		Weighted- Average Exercise Price (per option)		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Stock options outstanding as of January 1, 2011	22.2		$	14.43
Granted	0.8		12.48
Exercised	(1.3	)	9.61
Cancelled/expired	(3.0	)	31.19
Forfeited	(0.6	)	5.73
Stock options outstanding as of December 31, 2011	18.1		12.10		4.4	$	20.7
Stock options vested and expected to vest as of December 31, 2011	17.2		12.37		4.3	$	17.8
Stock options exercisable as of December 31, 2011	13.1		14.16		3.2	$	3.3

	Options		Weighted- Average Grant Date Fair Value (per option)		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Non-vested as of January 1, 2011	6.5		$	3.38
Granted	0.8		4.57
Vested	(1.7	)	4.27
Forfeited	(0.6	)	3.11
Non-vested as of December 31, 2011	5.0		3.31		7.5	$	17.5

There were 1.3 and 0.5 stock options exercised in 2011 and 2010, respectively, and there were no stock options exercised in 2009. The total intrinsic value of stock options exercised during 2011 and 2010 was $3.2 and $0.6, respectively. The cash received from the stock options exercised in 2011 and 2010 was $13.3 and $4.8, respectively. As of December 31, 2011, there was $7.1 of total unrecognized compensation expense related to non-vested stock options granted, which is expected to be recognized over a weighted-average period of 1.4 years.

We use the Black-Scholes option-pricing model to estimate the fair value of options granted, which requires the input of subjective assumptions including the option’s expected term and the price volatility of the underlying stock. Changes in the assumptions can materially affect the estimate of fair value and our results of operations could be materially impacted. The weighted-average grant-date fair value per option during the years ended December 31, 2011, 2010 and 2009 was $4.57, $3.88 and $2.69, respectively.

The fair value of each option grant has been estimated with the following weighted-average assumptions.



	Years ended December 31,
	2011		2010		2009
Expected volatility ¹	39.9	%	42.2	%	68.3	%
Expected term (years) ²	6.7		6.5		6.8
Risk free interest rate ³	2.8	%	3.0	%	2.5	%
Expected dividend yield ⁴	1.9	%	0.0	%	0.0	%


1	The expected volatility used to estimate the fair value of stock options awarded is based on a blend of: (i) historical volatility of our common stock for periods equal to the expected term of our stock options and (ii) implied volatility of tradable forward put and call options to purchase and sell shares of our common stock.

The estimate of our expected term is based on the average of (i) an assumption that all outstanding options are exercised upon achieving their full vesting date and (ii) an assumption that all outstanding options will be exercised at the midpoint between the current date (i.e., the date awards have ratably vested through) and their full contractual term. In determining the estimate, we considered several factors, including the historical option exercise behavior of our employees and the terms and vesting periods of the options.


3	The risk free rate is determined using the implied yield currently available for zero-coupon U.S. government issuers with a remaining term equal to the expected term of the options.


4	The expected dividend yield is calculated based on an annualized dividend of $0.24 per share. No dividend yield was assumed in 2010 and 2009 because we did not pay cash dividends on our common stock during those years.

Stock-Based Compensation

We grant other stock-based compensation awards such as stock-settled awards, cash-settled awards and performance-based awards (settled in cash or shares) to certain key employees. The number of shares or units received by an employee for performance-based awards depends on Company performance against specific performance targets and could range from 0% to 200% of the target amount of shares originally granted. Incentive awards are subject to certain restrictions and vesting requirements as determined by the Compensation Committee. The fair value of the shares on the grant date is amortized over the vesting period, which is generally three years. Upon completion of the vesting period for cash-settled awards, the grantee is entitled to receive a payment in cash based on the fair market value of the corresponding number of shares of common stock. No monetary consideration is paid by a recipient for any incentive award. The fair value of cash-settled awards is adjusted each quarter based on our share price. The holders of stock-settled awards have absolute ownership interest in the underlying shares of common stock prior to vesting, which includes the right to vote and receive dividends. Dividends declared on common stock are accrued during the vesting period and paid when the award vests. The holders of cash-settled and performance-based awards have no ownership interest in the underlying shares of common stock until the awards vest and the shares of common stock are issued.

Stock-based compensation awards expected to be settled in cash have been classified as liabilities in the Consolidated Balance Sheets as of December 31, 2011 and 2010.



	Years ended December 31,
	2011		2010		2009
Stock-Settled Awards:
Awards granted	0.8		3.7		7.8
Weighted-average grant-date fair value (per award)	$	11.94	$	8.47	$	4.21
Total fair value of vested awards distributed	$	63.1	$	36.4	$	23.8
Cash-Settled Awards:
Awards granted	0.0		0.6		1.4
Weighted-average grant-date fair value (per award)	$	8.96	$	8.50	$	4.43
Total fair value of vested awards distributed	$	10.4	$	4.8	$	7.5
Performance-Based Awards:
Awards granted	1.8		0.1		1.7
Weighted-average grant-date fair value (per award)	$	11.58	$	11.02	$	6.25
Total fair value of vested awards distributed	$	30.8	$	4.6	$	29.4

In conjunction with common stock dividends declared in 2011, we accrued dividends of $2.5 on non-vested stock-settled awards and paid $0.3 for stock-settled awards that vested during 2011.

A summary of the activity of our non-vested stock-settled awards, cash-settled awards, and performance-based awards during 2011 is presented below (performance-based awards are shown at 100% of the shares originally granted).



	Stock-Settled Awards					Cash-Settled Awards					Performance-Based Awards
	Awards			Weighted- Average Grant-Date Fair Value (per award)		Awards			Weighted- Average Grant-Date Fair Value (per award)		Awards			Weighted- Average Grant-Date Fair Value (per award)
Non-vested as of January 1, 2011	15.0			$	6.96	2.7			$	7.14	3.6			$	8.38
Granted	0.8			11.94		0.0			8.96		1.8			11.58
Vested	(5.3		)	8.82		(0.8		)	9.76		(2.5		)	9.33
Forfeited	(1.3		)	6.41		(0.3		)	7.30		(0.9		)	9.72
Non-vested as of December 31, 2011	9.2			6.41		1.6			5.85		2.0			10.84
Total unrecognized compensation expense remaining	$	14.9				$	3.7				$	12.8
Weighted-average years expected to be recognized over	0.8					0.7					1.9

During 2011 and 2010, additional performance cash awards with a total target value of $31.9 and $19.0, respectively, were awarded under the 2009 PIP and will be settled in shares upon vesting, which is three years from the grant date. As of December 31, 2011, there was $34.5 of total unrecognized compensation expense related to these awards, which is expected to be recognized over a remaining weighted-average period of 1.8 years.

In conjunction with our annual grant of long-term incentive compensation awards, we reviewed our estimates and assumptions in 2011, which resulted in a decrease to our estimated forfeiture rate, as our review of our actual forfeitures indicated a lower level of forfeitures than previously assumed.

2009 Restricted Cash Plan

In March 2009, the Compensation Committee approved the Interpublic Restricted Cash Plan (the “Cash Plan”). Under the Cash Plan, the Board, the Compensation Committee or the Plan Administrator may grant cash awards to certain employees eligible to receive stock-settled and cash-settled awards. Cash awards, when granted, have a service period vesting condition and generally vest in three years.

Cash Awards

During the years ended December 31, 2011, 2010 and 2009, the Compensation Committee granted cash awards under the Cash Plan with a total target value of $4.2, $31.6 and $28.4, respectively, and we recognized $16.6, $12.8 and $4.5, respectively, in salaries and related expenses in our Consolidated Statements of Operations.

During the years ended December 31, 2011, 2010 and 2009, the Compensation Committee granted performance awards to be settled in cash under the 2009 PIP with a total target value of $39.3, $18.5, and $31.7, respectively, and we recognized $22.0, $11.4 and $3.9, respectively, in salaries and related expenses in our Consolidated Statements of Operations.

We amortize the present value of the amount expected to vest for cash awards and performance cash awards over the vesting period using the straight-line method, less an assumed forfeiture rate. Cash awards do not fall within the scope of the authoritative guidance for stock compensation as they are not paid in equity and the value of the award is not correlated with our stock price. Due to the cash nature of the payouts and the vesting period, we account for these awards in accordance with authoritative guidance for deferred compensation arrangements.

Employee Stock Purchase Plans

The Interpublic Group of Companies Employee Stock Purchase Plan (the “ESPP Plan”) became active April 1, 2007. Under the ESPP Plan, eligible employees may purchase our common stock through payroll deductions not exceeding 10% of their eligible compensation or 900 (actual number) shares each offering period. The price an employee pays for a share of common stock under the ESPP Plan is 90% of the lesser of the average market price of a share on the first business day of the offering period or the average market price of a share on the last business day of the offering period of three months. An aggregate of 15.0 shares are reserved for issuance under the ESPP Plan, of which 2.0 shares have been issued through December 31, 2011.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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-Publisher FASB

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-Number 123R

-Paragraph 64, 65, A240

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 53

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-Number Topic 14

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+ Details

Fair Value Measurements (Notes)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Fair Value Disclosures

Fair Value Measurements

Authoritative guidance for fair value measurements establishes a fair value hierarchy which requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. We primarily apply the market approach for recurring fair value measurements. There are three levels of inputs that may be used to measure fair value:



Level 1		Unadjusted quoted prices in active markets for identical assets or liabilities. An active market for the asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

Level 2		Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3		Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

There were no changes to our valuation techniques used to measure the fair value of assets and liabilities on a recurring basis during 2011 as compared to the prior year.

The following tables present information about our assets and liabilities measured at fair value on a recurring basis as of December 31, 2011, and December 31, 2010, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value.



	December 31, 2011												Balance Sheet Classification
	Level 1			Level 2			Level 3			Total			Balance Sheet Classification
Assets
Cash equivalents	$	1,596.5		$	0.0		$	0.0		$	1,596.5		Cash and cash equivalents
Short-term marketable securities	12.9			0.0			0.0			12.9			Marketable securities
Long-term investments	1.3			9.0			0.0			10.3			Other assets
Total	$	1,610.7		$	9.0		$	0.0		$	1,619.7

As a percentage of total assets	12.5		%	0.1		%	0.0		%	12.6		%

Liabilities
Mandatorily redeemable noncontrolling interests ¹	$	0.0		$	0.0		$	58.9		$	58.9

	December 31, 2010												Balance Sheet Classification
	Level 1			Level 2			Level 3			Total			Balance Sheet Classification
Assets
Cash equivalents	$	1,744.4		$	0.0		$	0.0		$	1,744.4		Cash and cash equivalents
Short-term marketable securities	13.7			0.0			0.0			13.7			Marketable securities
Long-term investments	1.3			13.8			0.0			15.1			Other assets
Total	$	1,759.4		$	13.8		$	0.0		$	1,773.2

As a percentage of total assets	13.5		%	0.1		%	0.0		%	13.6		%

Liabilities
Mandatorily redeemable noncontrolling interests ¹	$	0.0		$	0.0		$	52.0		$	52.0

Relates to unconditional obligations to purchase additional noncontrolling equity shares of consolidated subsidiaries. Fair value measurement of the obligation was based upon the amount payable as if the forward contracts were settled. The amount redeemable within the next twelve months is classified in accrued liabilities; any interests redeemable thereafter are classified in other non-current liabilities.

The following tables present additional information about assets and liabilities measured at fair value on a recurring basis and for which we utilize Level 3 inputs to determine fair value.



	Years ended December 31,
	2011			2010
	Liabilities			Assets			Liabilities
	Mandatorily redeemable noncontrolling interests			Foreign currency derivatives			Mandatorily redeemable noncontrolling interests
Balance at beginning of period	$	52.0		$	0.6		$	47.8
Level 3 additions	28.1			0.0			2.7
Level 3 reductions	(28.0		)	0.0			(2.9		)
Realized losses included in net income	(6.7		)	(0.6		)	(4.4		)
Foreign currency translation	0.1			0.0			0.0
Balance at end of period	$	58.9		$	0.0		$	52.0

Level 3 additions relate to unconditional obligations to purchase additional equity interests in previous acquisitions for cash in future periods. Level 3 reductions primarily consist of cash payments made related to unconditional obligations to purchase additional equity interests in previous acquisitions, which are classified within the financing section of the Consolidated Statements of Cash Flows. Realized losses included in net income for mandatorily redeemable noncontrolling interests and foreign currency derivatives are reported as a component of interest expense and other income, net, respectively, in the Consolidated Statements of Operations.

Gross unrealized and realized gains and losses for our long-term investments and short-term marketable securities are listed below.



	Years ended December 31,
	2011		2010		2009
Reported in comprehensive income
Unrealized gains	$	0.3	$	0.5	$	0.9
Unrealized losses	0.4		0.0		0.5
Reported in other income, net
Realized gains	$	0.0	$	0.2	$	1.0
Realized losses	0.3		0.0		0.6

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

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+ Details

Employee Benefits (Notes)

12 Months Ended

Dec. 31, 2011

Employee Benefits

Pension and Postretirement Benefit Plans

We have a defined benefit pension plan (the “Domestic Pension Plan”) that consists of approximately 4,200 participants and has been closed to new participants. We also have numerous funded and unfunded plans outside the U.S. The Interpublic Pension Plan in the U.K. is a defined benefit plan and is our most material foreign pension plan in terms of the benefit obligation and plan assets.

Some of our domestic and foreign subsidiaries provide postretirement health benefits and life insurance to eligible employees and, in certain cases, their dependents. The domestic postretirement benefit plan is our most material postretirement benefit plan in terms of the benefit obligation. This plan consists of approximately 2,600 participants, is closed to new participants and is unfunded.

Differences between the aggregate income statement and balance sheet amounts listed in the tables below and the totals reported in our Consolidated Statements of Operations, Consolidated Balance Sheets and Consolidated Statements of Stockholders' Equity and Comprehensive Income relate to non-material foreign pension and postretirement benefit plans.

Pension and Postretirement Benefit Obligation

The change in the benefit obligation, the change in plan assets, the funded status and amounts recognized for the domestic pension plan, the significant foreign pension plans and the domestic postretirement benefit plan are listed below.



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
December 31,	2011			2010			2011			2010			2011			2010
Benefit Obligation
Projected benefit obligation as of January 1	$	130.9		$	139.6		$	431.1		$	464.0		$	51.8		$	55.1
Service cost	0.0			0.0			9.6			9.7			0.2			0.3
Interest cost	6.8			7.3			23.3			22.8			2.7			2.8
Benefits paid	(11.9		)	(16.6		)	(21.2		)	(21.1		)	(6.2		)	(7.0		)
Plan participant contributions	0.0			0.0			0.7			0.7			1.4			1.5
Actuarial losses (gains)	3.2			0.6			13.5			(2.3		)	0.9			(0.9		)
Curtailments and settlements	0.0			0.0			(5.8		)	(12.2		)	0.0			0.0
Foreign currency effect	0.0			0.0			4.9			(15.1		)	0.0			0.0
Other	0.0			0.0			0.5			(15.4		)	0.0			0.0

Projected benefit obligation as of December 31	$	129.0		$	130.9		$	456.6		$	431.1		$	50.8		$	51.8

Fair Value of Plan Assets
Fair value of plan assets as of January 1	$	95.3		$	91.1		$	312.1		$	300.2		$	0.0		$	0.0
Actual return on plan assets	9.7			11.2			9.0			28.3			0.0			0.0
Employer contributions	14.1			9.6			65.0			28.1			4.8			5.5
Plan participant contributions	0.0			0.0			0.7			0.7			1.4			1.5
Benefits paid	(11.9		)	(16.6		)	(21.2		)	(21.1		)	(6.2		)	(7.0		)
Settlements	0.0			0.0			(5.8		)	(12.2		)	0.0			0.0
Foreign currency effect	0.0			0.0			3.8			(7.4		)	0.0			0.0
Other	0.0			0.0			0.0			(4.5		)	0.0			0.0
																0.0
Fair value of plan assets as of December 31	$	107.2		$	95.3		$	363.6		$	312.1		$	0.0		$	0.0

Funded status of the plans at December 31	$	(21.8	)	$	(35.6	)	$	(93.0	)	$	(119.0	)	$	(50.8	)	$	(51.8	)



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
December 31,	2011			2010			2011			2010			2011			2010
Amounts recognized in Consolidated Balance Sheets
Non-current asset	$	0.0		$	0.0		$	19.6		$	8.1		$	0.0		$	0.0
Current liability	0.0			0.0			(8.1		)	(9.3		)	(4.9		)	(4.5		)
Non-current liability	(21.8		)	(35.6		)	(104.5		)	(117.8		)	(45.9		)	(47.3		)

Net liability recognized	$	(21.8	)	$	(35.6	)	$	(93.0	)	$	(119.0	)	$	(50.8	)	$	(51.8	)

Accumulated benefit obligation	$	129.0		$	130.9		$	432.8		$	408.8

Amounts recognized in Accumulated Other Comprehensive Loss, net
Net actuarial loss	$	49.9		$	55.5		$	55.2		$	32.3		$	6.7		$	5.7
Prior service cost (credit)	0.0			0.1			1.9			1.6			(0.3		)	(0.4		)
Transition obligation	0.0			0.0			0.0			0.0			0.1			0.3

Total amount recognized	$	49.9		$	55.6		$	57.1		$	33.9		$	6.5		$	5.6

In 2012, we estimate that we will recognize $6.1, $1.0 and $0.2 of net actuarial losses from accumulated other comprehensive loss, net to net periodic cost related to our domestic pension plan, significant foreign pension plans and domestic postretirement benefit plan, respectively.



	Domestic Pension Plan				Foreign Pension Plans
December 31,	2011		2010		2011		2010
Pension plans with underfunded or unfunded accumulated benefit obligation
Aggregate projected benefit obligation	$	129.0	$	130.9	$	132.6	$	411.5
Aggregate accumulated benefit obligation	129.0		130.9		127.0		394.4
Aggregate fair value of plan assets	107.2		95.3		20.2		285.7

Net Periodic Cost

The components of net periodic benefit cost and key assumptions are listed below.



	Domestic Pension Plan									Foreign Pension Plans									Domestic Postretirement Benefit Plan
Years ended December 31,	2011			2010			2009			2011			2010			2009			2011			2010			2009
Service cost	$	0.0		$	0.0		$	0.0		$	9.6		$	9.7		$	11.7		$	0.2		$	0.3		$	0.4
Interest cost	6.8			7.3			8.0			23.3			22.8			23.2			2.7			2.8			3.1
Expected return on plan assets	(7.5		)	(7.0		)	(7.4		)	(19.0		)	(17.0		)	(13.7		)	0.0			0.0			0.0
Curtailment and settlement losses	0.0			0.0			0.0			0.0			1.4			2.5			0.0			0.0			0.0
Amortization of:
Transition obligation	0.0			0.0			0.0			0.0			0.0			0.0			0.1			0.2			0.1
Prior service cost (credit)	0.0			0.0			0.1			0.2			0.2			0.2			(0.1		)	(0.1		)	(0.1		)
Unrecognized actuarial losses	6.6			8.6			9.8			0.7			1.9			2.3			0.0			0.0			0.0
Net periodic cost	$	5.9		$	8.9		$	10.5		$	14.8		$	19.0		$	26.2		$	2.9		$	3.2		$	3.5

Assumptions



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
Years ended December 31,	2011		2010		2009		2011		2010		2009		2011		2010		2009
Net periodic cost
Discount rate	5.50	%	5.51	%	6.01	%	5.45	%	5.50	%	5.54	%	5.50	%	5.50	%	6.00	%
Rate of compensation increase	N/A		N/A		N/A		4.37	%	4.43	%	4.41	%	N/A		N/A		N/A
Expected return on plan assets	7.50	%	7.49	%	8.16	%	5.88	%	5.84	%	5.05	%	N/A		N/A		N/A
Benefit obligation
Discount rate	5.00	%	5.50	%	5.53	%	5.00	%	5.45	%	5.51	%	5.00	%	5.50	%	5.50	%
Rate of compensation increase	N/A		N/A		N/A		3.66	%	4.34	%	4.43	%	N/A		N/A		N/A
Health care cost trend rate assumed for next year
Initial rate (weighted-average)													8.00	%	8.50	%	8.00	%
Year ultimate rate is reached													2016		2017		2015
Ultimate rate													5.50	%	5.50	%	5.50	%

Discount Rates – At December 31, 2011 and 2010, we determined our discount rates for our domestic pension plan, foreign pension plans and domestic postretirement benefit plan based on on either a bond selection/settlement approach or bond-yield curve approach. At December 31, 2009, we determined our discount rates for our domestic pension plan, foreign pension plans and domestic postretirement benefit plan based on a bond-yield curve approach. Using the bond selection/settlement approach, we determine the discount rate by selecting a portfolio of corporate bonds appropriate to provide for the projected benefit payments. Using the bond-yield curve approach, we determine the discount rate by matching the plans' cash flows to spot rates developed from a yield curve. Both approaches utilize high quality AA-rated corporate bonds and the plans' projected cash flows to develop a discounted value of the benefit payments, which is then used to develop a single discount rate. In countries where markets for high-quality long-term AA corporate bonds are not well developed, a portfolio of long-term government bonds is used as a basis to develop hypothetical corporate bond yields, which serve as a basis to derive the discount rate.

Expected Return on Assets – Our expected rate of return is determined at the beginning of each year and considers asset class index returns over various market and economic conditions, current and expected market conditions, risk premiums associated with asset classes and long-term inflation rates. We determine both a short-term and long-term view and then select a long-term rate of return assumption that matches the duration of our liabilities.

Fair Value of Pension Plan Assets

The following table presents the fair value of our domestic and foreign pension plans' assets as of December 31, 2011 and 2010, and indicates the fair value hierarchy of the valuation techniques utilized to determine such fair value. See Note 11 for a description of the fair value hierarchy.



	December 31, 2011								December 31, 2010
Asset Class	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Investment funds	$	18.4	$	307.1	$	43.8	$	369.3	$	19.5	$	289.1	$	53.9	$	362.5
Insurance contracts	0.0		24.8		0.0		24.8		0.0		25.1		0.0		25.1
Limited partnerships	0.0		0.0		41.1		41.1		0.0		0.0		3.2		3.2
Other	31.1		4.4		0.1		35.6		13.3		3.2		0.1		16.6
Total	$	49.5	$	336.3	$	85.0	$	470.8	$	32.8	$	317.4	$	57.2	$	407.4

Investment funds include mutual funds, common/collective trusts, hedge funds and other commingled assets that are invested primarily in equity and fixed income securities. Mutual funds, which are publicly traded, are primarily valued using recently reported sales prices. Investment funds, which are not publicly traded, are valued based on the net asset value of shares held by the plan at year end, which reflects the fair value of the underlying investments. Insurance contracts are valued based on the cash surrender value of the contract. Limited partnerships are invested primarily in equity and fixed income securities. Other investments primarily include cash and cash equivalents, equity securities and fixed income securities such as government and investment-grade corporate bonds.

The following table presents additional information about our domestic and foreign pension plans' assets for which we utilize Level 3 inputs to determine fair value.



	Year ended December 31, 2011											Year ended December 31, 2010
	Investment Funds			Limited Partnership			Other		Total			Investment Funds			Limited Partnership			Other			Total
Balance at beginning of period	$	53.9		$	3.2		$	0.1	$	57.2		$	38.6		$	4.7		$	0.5		$	43.8
Actual return on assets:
Assets sold during the year	0.1			0.0			0.0		0.1			(0.4		)	(0.2		)	0.0			(0.6		)
Assets still held at year end	(0.6		)	(1.2		)	0.0		(1.8		)	6.5			0.2			0.0			6.7
Net purchases, sales and settlements	(9.6		)	39.1			0.0		29.5			3.0			(1.5		)	0.0			1.5
Transfers in/out of Level 3	0.0			0.0			0.0		0.0			6.2			0.0			(0.4		)	5.8
Balance at end of period	$	43.8		$	41.1		$	0.1	$	85.0		$	53.9		$	3.2		$	0.1		$	57.2

Asset Allocation

The primary investment goal for our plans’ assets is to maximize total asset returns while ensuring the plans’ assets are available to fund the plans’ liabilities as they become due. The plans’ assets in aggregate and at the individual portfolio level are invested so that total portfolio risk exposure and risk-adjusted returns best achieve this objective. The aggregate amount of our own stock held as investment for our domestic and foreign pension funds is considered negligible relative to the total fund assets. As of December 31, 2011, the weighted-average target and actual asset allocations relating to our domestic and foreign pension plans' assets are listed below.



			December 31,
Asset Class	2012 Target Allocation		2011		2010
Equity securities	25	%	20	%	26	%
Fixed income securities	47	%	47	%	47	%
Other	28	%	33	%	27	%
Total	100	%	100	%	100	%

Cash Flows

During 2011, we contributed $14.1 and $65.0 to our domestic and foreign pension plans, respectively. For 2012, we expect to contribute $5.6 and $15.7 to our domestic and foreign pension plans, respectively.

The following estimated future benefit payments, which reflect future service, as appropriate, are expected to be paid in the years indicated below.



Years	Domestic Pension Plan		Foreign Pension Plans		Domestic Postretirement Benefit Plan
2012	$	11.0	$	21.8	$	5.4
2013	10.9		24.2		5.4
2014	10.6		24.8		5.3
2015	9.9		25.8		5.1
2016	10.3		26.7		5.0
2017 - 2021	44.4		153.7		21.7

The estimated future payments for our domestic postretirement benefit plan is before any estimated federal subsidies expected to be received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003. The following federal subsidies are expected to be received in the years indicated below.



Years	Domestic Postretirement Benefit Plan
2012	$	0.5
2013	0.6
2014	0.6
2015	0.5
2016	0.5
2017 - 2021	1.4

Savings Plans

We sponsor defined contribution plans (the “Savings Plans”) that cover substantially all domestic employees. The Savings Plans permit participants to make contributions on a pre-tax and/or after-tax basis and allow participants to choose among various investment alternatives. We match a portion of participant contributions based upon their years of service. Amounts expensed for the Savings Plans for 2011, 2010 and 2009 were $35.4, $34.3 and $35.1, respectively. Expense includes a discretionary Company contribution of $3.7, $3.6 and $3.8 offset by participant forfeitures of $2.6, $2.4 and $2.7 in 2011, 2010 and 2009, respectively. In addition, we maintain defined contribution plans in various foreign countries and contributed $30.8, $26.2 and $25.0 to these plans in 2011, 2010 and 2009, respectively.

Deferred Compensation and Benefit Arrangements

We have deferred compensation arrangements which (i) permit certain of our key officers and employees to defer a portion of their salary or incentive compensation, or (ii) require us to contribute an amount to the participant’s account. The arrangements typically provide that the participant will receive the amounts deferred plus interest upon attaining certain conditions, such as completing a certain number of years of service or upon retirement or termination. As of December 31, 2011 and 2010, the deferred compensation liability balance was $96.0 and $104.2, respectively. Amounts expensed for deferred compensation arrangements in 2011, 2010 and 2009 were $7.6, $14.1 and $11.6, respectively.

We have deferred benefit arrangements with certain key officers and employees that provide participants with an annual payment, payable when the participant attains a certain age and after the participant’s employment has terminated. The deferred benefit liability was $178.3 and $177.1 as of December 31, 2011 and 2010, respectively. Amounts expensed for deferred benefit arrangements in 2011, 2010 and 2009 were $14.8, $12.9 and $12.0, respectively.

We have purchased life insurance policies on participants’ lives to assist in the funding of the related deferred compensation and deferred benefit liabilities. As of December 31, 2011 and 2010, the cash surrender value of these policies was $144.9 and $123.2, respectively. In addition to the life insurance policies, certain investments are held for the purpose of paying the deferred compensation and deferred benefit liabilities. These investments, along with the life insurance policies, are held in a separate revocable trust for the purpose of paying the deferred compensation and the deferred benefit arrangement liabilities. As of December 31, 2011 and 2010, the value of such investments in the trust was $13.8 and $16.5, respectively. The short-term investments are included in cash and cash equivalents, and the long-term investments and cash surrender value of the policies are included in other assets.

Long-Term Disability Plan

We have a long-term disability plan which provides income replacement benefits to eligible participants who are unable to perform their job duties during the first 24 months of disability. Income replacement benefits are continued thereafter if the participant is unable to perform any job related to his or her education, training or experience. As all income replacement benefits are fully insured, no related obligation is required as of December 31, 2011 and 2010. In addition to income replacement benefits, plan participants may remain covered for certain health and life insurance benefits up to age 65 and as such, we have recorded an obligation of $9.3 and $10.2 as of December 31, 2011 and 2010, respectively.

The entire disclosure for pension and other postretirement benefits.

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-Number 132R

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+ Details

Segment Information (Notes)

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Segment Information

As of December 31, 2011, we have two reportable segments, which are IAN and CMG. IAN is comprised of McCann Worldgroup, Draftfcb, Lowe & Partners, Mediabrands and our domestic integrated agencies. CMG is comprised of a number of our specialist marketing services offerings. We also report results for the “Corporate and other” group.

Within IAN, our agencies provide a comprehensive array of global communications and marketing services, each offering a distinctive range of solutions for our clients. In addition, our domestic integrated agencies, including Campbell-Ewald, Hill Holliday and Mullen, provide a full range of advertising, marketing communications services and/or marketing services and partner with our global operating divisions as needed. IAN’s operating divisions share similar economic characteristics and are similar in other areas, specifically related to the nature of their services, the manner in which the services are provided and the similarity of their respective customers.

CMG, which includes Weber Shandwick, FutureBrand, DeVries, GolinHarris, Jack Morton, and Octagon Worldwide, provides clients with diversified services, including public relations, meeting and event production, sports and entertainment marketing, corporate and brand identity and strategic marketing consulting. CMG shares some similarities with service lines offered by IAN; however, on an aggregate basis, CMG has a higher proportion of arrangements for which they act as principal, a different distribution model than IAN and different margin structure.

The profitability measure employed by our chief operating decision maker for allocating resources to operating divisions and assessing operating division performance is operating income, excluding the impact of restructuring and other reorganization-related charges, net and long-lived asset impairment and other charges, if applicable. With the exception of excluding these amounts from reportable segment operating income, all segments follow the same accounting policies as those described in Note 1.

Certain corporate and other charges are reported as a separate line item within total segment operating income and include corporate office expenses, shared service center expenses and certain other centrally managed expenses that are not fully allocated to operating divisions. Salaries and related expenses include salaries, long-term incentive awards, annual bonuses and other miscellaneous benefits for corporate office employees. Office and general expenses primarily include professional fees related to internal control compliance, financial statement audits and legal, information technology and other consulting services, which are engaged and managed through the corporate office. In addition, office and general expenses also include rental expense and depreciation of leasehold improvements for properties occupied by corporate office employees. A portion of these expenses are allocated to operating divisions based on a formula that uses the planned revenues of each of the operating units. Amounts allocated also include specific charges for information technology-related projects, which are allocated based on utilization.

Summarized financial information concerning our reportable segments is shown in the following table.



	Years ended December 31,
	2011			2010			2009
Revenue:
IAN	$	5,891.8		$	5,468.4		$	5,061.7
CMG	1,122.8			1,038.9			945.7
Total	$	7,014.6		$	6,507.3		$	6,007.4

Segment operating income:
IAN	$	728.8		$	617.6		$	423.4
CMG	101.4			80.3			73.1
Corporate and other	(142.0		)	(145.3		)	(150.6		)
Total	688.2			552.6			345.9

Restructuring and other reorganization-related charges, net	(1.0		)	(3.9		)	(4.6		)
Interest expense	(136.8		)	(139.7		)	(155.6		)
Interest income	37.8			28.7			35.0
Other income, net	150.2			12.9			11.7
Income before income taxes	$	738.4		$	450.6		$	232.4

Depreciation and amortization of fixed assets and intangible assets:
IAN	$	125.7		$	116.7		$	131.6
CMG	12.8			14.2			15.0
Corporate and other	12.4			17.5			23.3
Total	$	150.9		$	148.4		$	169.9

Capital expenditures:
IAN	$	94.1		$	83.5		$	50.0
CMG	16.9			6.9			5.7
Corporate and other	29.3			5.9			11.4
Total	$	140.3		$	96.3		$	67.1

	December 31,
	2011			2010
Total assets:
IAN	$	10,589.2		$	10,481.7
CMG	1,019.9			930.5
Corporate and other	1,267.5			1,658.6
Total	$	12,876.6		$	13,070.8

Revenue and long-lived assets, excluding intangible assets, are presented by major geographic area in the following table.



	Revenue						Long-Lived Assets
	Years ended December 31,						December 31,
	2011		2010		2009		2011		2010
Domestic	$	3,887.7	$	3,709.9	$	3,372.3	$	477.2	$	480.6
International:
United Kingdom	539.4		469.6		458.5		65.2		47.4
Continental Europe	908.9		863.2		922.2		72.1		85.2
Asia Pacific	741.7		639.8		575.4		78.4		82.1
Latin America	444.4		363.3		287.1		69.1		57.8
Other	492.5		461.5		391.9		34.5		38.4
Total international	3,126.9		2,797.4		2,635.1		319.3		310.9
Total consolidated	$	7,014.6	$	6,507.3	$	6,007.4	$	796.5	$	791.5

Revenue is primarily attributed to geographic areas based on where the services are performed. Furniture, equipment and leasehold improvements are allocated based upon physical location. Other assets and investments are allocated based on the location of the related operations.

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Commitments and Contingencies Disclosure [Abstract]

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+ Details

Commitments and Contingencies (Notes)

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies

Leases

We lease office premises and equipment. Where leases contain escalation clauses or concessions, such as rent holidays and landlord/tenant incentives or allowances, the impact of such adjustments is recognized on a straight-line basis over the minimum lease period. Certain leases provide for renewal options and require the payment of real estate taxes or other occupancy costs, which are also subject to escalation clauses. Net rent expense is listed in the table below.



	Years ended December 31,
	2011			2010			2009
Gross rent expense	$	369.5		$	365.2		$	391.5
Third-party sublease rental income	(19.4		)	(20.0		)	(26.8		)
Net rent expense	$	350.1		$	345.2		$	364.7

Cash amounts for future minimum lease commitments for office premises and equipment under non-cancelable leases, along with minimum sublease rental income to be received under non-cancelable subleases, are listed in the table below.



Period	Rent Obligations		Sublease Rental Income			Net Rent
2012	$	313.1	$	(26.9	)	$	286.2
2013	277.1		(26.0		)	251.1
2014	224.0		(13.9		)	210.1
2015	186.5		(6.1		)	180.4
2016	147.1		(1.4		)	145.7
Thereafter	487.9		(0.8		)	487.1
Total	$	1,635.7	$	(75.1	)	$	1,560.6

Guarantees

We have guaranteed certain obligations of our subsidiaries relating principally to credit facilities, certain media payables and operating leases of certain subsidiaries. The amount of parent company guarantees on lease obligations was $385.1 and $376.8 as of December 31, 2011 and 2010, respectively, and the amount of parent company guarantees primarily relating to credit facilities was $327.5 and $395.0 as of December 31, 2011 and 2010, respectively. In the event of non-payment by the applicable subsidiary of the obligations covered by a guarantee, we would be obligated to pay the amounts covered by that guarantee. As of December 31, 2011, there are no material assets pledged as security for such parent company guarantees.

Contingent Acquisition Obligations

The following table details the estimated future contingent acquisition obligations payable in cash as of December 31, 2011.



	2012		2013		2014		2015		2016		Thereafter		Total
Deferred acquisition payments	$	40.7	$	13.6	$	14.5	$	5.9	$	29.3	$	16.6	$	120.6
Redeemable noncontrolling interests and call options with affiliates ¹	15.6		53.4		22.8		26.5		4.0		6.7		129.0
Total contingent acquisition payments	56.3		67.0		37.3		32.4		33.3		23.3		249.6
Less: cash compensation expense included above	3.6		0.3		0.2		0.2		0.0		0.0		4.3
Total	$	52.7	$	66.7	$	37.1	$	32.2	$	33.3	$	23.3	$	245.3

We have entered into certain acquisitions that contain both redeemable noncontrolling interests and call options with similar terms and conditions. In such instances, we have included the related estimated contingent acquisition obligation in the period when the earliest related option is exercisable. We have certain redeemable noncontrolling interests that are exercisable at the discretion of the noncontrolling equity owners as of December 31, 2011. These estimated acquisition payments of $4.6 have been included within the total payments expected to be made in 2012 in the table. If not made in 2012, they will continue to carry forward into 2013 or beyond until they are exercised or expire. Redeemable noncontrolling interests are included in the table at current exercise price payable in cash, not at applicable redemption value in accordance with the authoritative guidance for classification and measurement of redeemable securities.

The estimated amounts listed would be paid in the event of exercise at the earliest exercise date. See Note 5 for further information relating to the payment structure of our acquisitions. All payments are contingent upon achieving projected operating performance targets and satisfying other conditions specified in the related agreements and are subject to revisions as the earn-out periods progress.

Legal Matters

We are involved in various legal proceedings, and subject to investigations, inspections, audits, inquiries and similar actions by governmental authorities, arising in the normal course of business. We evaluate all cases each reporting period and record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount, or potential range, of loss can be reasonably estimated. In certain cases, we cannot reasonably estimate the potential loss because, for example, the litigation is in its early stages. While any outcome related to litigation or such governmental proceedings in which we are involved cannot be predicted with certainty, management believes that the outcome of these matters, individually and in the aggregate, will not have a material adverse effect on our financial condition, results of operations or cash flows.

The entire disclosure for commitments and contingencies.

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Recent Accounting Standards (Notes)	12 Months Ended
Recent Accounting Standards (Notes)	Dec. 31, 2011
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Standards	Recent Accounting Standards Goodwill In September 2011, the Financial Accounting Standards Board ("FASB") issued amended guidance for performing goodwill impairment tests as it relates to performing the two-step goodwill impairment test. Under the amended guidance, an entity is permitted to first assess qualitative factors in determining whether the fair value of a reporting unit is less than its carrying value. We adopted the amended guidance for our 2011 annual impairment test, which was performed as of October 1, 2011. The adoption of the amended guidance did not have a significant impact on our Consolidated Financial Statements. In December 2010, the FASB issued amended guidance for performing goodwill impairment tests, which was effective for us January 1, 2011. The amended guidance requires reporting units with zero or negative carrying amounts to be assessed to determine if it is "more likely than not" that goodwill impairment exists. As part of this assessment, entities should consider all qualitative factors that could impact the carrying value. The adoption of this amended guidance did not have a significant impact on our Consolidated Financial Statements. Multiemployer Pension Plans In September 2011, the FASB issued amended guidance to enhance disclosure requirements related to an employer's participation in multiemployer pension plans, which was effective for our fiscal year ended December 31, 2011. The amended guidance requires additional quantitative and qualitative disclosures for entities with significant pension plans that multiple employers may contribute to. The adoption of this amended guidance did not have a material impact on our Consolidated Financial Statements. Comprehensive Income In June 2011, the FASB issued amended guidance for presenting comprehensive income. The amended guidance eliminates the option to present other comprehensive income and its components in the statement of stockholders' equity. We may elect to present the items of net income and other comprehensive income in a single continuous statement of comprehensive income or in two separate, but consecutive, statements. Under either method the statement would need to be presented with equal prominence as the other primary financial statements. In December 2011, the FASB further amended guidance for presenting comprehensive income by indefinitely deferring the requirement to present reclassification adjustments out of accumulated other comprehensive income by component in both the income statement and statement in which other comprehensive income is presented. Both amendments will be effective for us beginning January 1, 2012. We will present net income and other comprehensive income in two separate, but consecutive, statements of net income and other comprehensive income beginning in the first quarter of 2012 and will apply this change retrospectively. As this standard relates only to the presentation of other comprehensive income, the adoption of this accounting standard will not have an impact on our Consolidated Financial Statements. Fair Value Measurements In May 2011, the FASB issued amended guidance for measuring fair value and required disclosure information about such measures, which will be effective for us beginning January 1, 2012, and applied prospectively. The amended guidance requires an entity to disclose all transfers between Level 1 and Level 2 of the fair value hierarchy, as well as provide quantitative and qualitative disclosures related to Level 3 fair value measurements. Additionally, the amended guidance requires an entity to disclose the fair value hierarchy level which was used to determine the fair value of financial instruments that are not measured at fair value, but for which fair value information must be disclosed. We do not expect the adoption of the amended guidance to have a significant impact on our Consolidated Financial Statements. In January 2010, the FASB issued amended guidance to enhance disclosure requirements related to fair value measurements. The amended guidance for Level 1 and Level 2 fair value measurements was effective for us January 1, 2010. The amended guidance for Level 3 fair value measurements was effective for us January 1, 2011. The guidance requires disclosures of amounts and reasons for transfers in and out of Level 1 and Level 2 of the fair value hierarchy as well as additional information related to activities in the reconciliation of Level 3 fair value measurements. The guidance expanded the disclosures related to the level of disaggregation of assets and liabilities and information about inputs and valuation techniques. The adoption of this amended guidance did not have a significant impact on our Consolidated Financial Statements. Revenue Recognition In March 2010, the Emerging Issues Task Force (“EITF”) reached a consensus related to guidance when applying the milestone method of revenue recognition. The consensus was issued by the FASB as an update to authoritative guidance for revenue recognition and was effective for us January 1, 2011. The amended guidance provides criteria for identifying those deliverables in an arrangement that meet the definition of a milestone. In addition, the amended guidance includes enhanced quantitative and qualitative disclosures about the arrangements when an entity recognizes revenue using the milestone method. The adoption of this amended guidance did not have a significant impact on our Consolidated Financial Statements. In September 2009, the EITF reached a consensus related to revenue arrangements with multiple deliverables. The consensus was issued by the FASB as an update to authoritative guidance for revenue recognition and was effective for us January 1, 2011. The updated guidance revises how the estimated selling price of each deliverable in a multiple element arrangement is determined when the deliverables do not have stand-alone value. In addition, the guidance requires additional disclosures about the methods and assumptions used to evaluate multiple element arrangements and to identify the significant deliverables within those arrangements. The amended guidance did not have a significant impact on our Consolidated Financial Statements.

Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.

Quarterly Financial Information Disclosure [Abstract]

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-Glossary Indirect Effects of a Change in Accounting Principle

-URI http://asc.fasb.org/extlink&oid=6515603

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accounting Change

-URI http://asc.fasb.org/extlink&oid=6503790

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Change in Accounting Principle

-URI http://asc.fasb.org/extlink&oid=6507316

Reference 13: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Direct Effects of a Change in Accounting Principle

-URI http://asc.fasb.org/extlink&oid=6510796

Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 270

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.10-01.(b)(6))

-URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699

+ Details

Results by Quarter (Unaudited)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information

Results by Quarter (Unaudited)



	Three Months Ended March 31,						Three Months Ended June 30,						Three Months Ended September 30,						Three Months Ended December 31,
	2011			2010			2011			2010			2011			2010			2011			2010
Revenue	$	1,474.8		$	1,337.0		$	1,740.7		$	1,611.7		$	1,726.5		$	1,553.4		$	2,072.6		$	2,005.2
Salaries and related expenses	1,080.1			979.3			1,095.7			991.0			1,088.0			1,007.1			1,138.3			1,139.6
Office and general expenses	439.2			416.8			470.8			442.9			465.5			444.7			548.8			533.3
Restructuring and other reorganization-related charges (reversals), net	0.8			0.3			0.2			0.6			(0.2		)	1.4			0.2			1.6
Operating (loss) income	(45.3		)	(59.4		)	174.0			177.2			173.2			100.2			385.3			330.7
Other (expense) income, net ¹	(6.1		)	0.5			5.3			(2.1		)	137.1			(3.1		)	13.9			17.6
Total (expenses) and other income¹	(29.7		)	(25.6		)	(18.1		)	(31.0		)	113.9			(31.0		)	(14.9		)	(10.5		)
(Benefit of) provision for income taxes	(21.5		)	(15.3		)	47.6			63.3			70.4			24.4			93.7			98.9
Net (loss) income ¹	(53.2		)	(70.3		)	108.9			83.1			217.5			45.6			278.3			222.8
Net (loss) income available to IPG common stockholders ¹	$	(48.1	)	$	(71.5	)	$	101.7		$	105.3		$	208.1		$	42.4		$	259.0		$	195.0
(Loss) earnings per share available to IPG common stockholders:
Basic	$	(0.10	)	$	(0.15	)	$	0.21		$	0.22		$	0.45		$	0.09		$	0.58		$	0.41
Diluted	$	(0.10	)	$	(0.15	)	$	0.19		$	0.15		$	0.40		$	0.08		$	0.50		$	0.36

Dividends declared per common stock	$	0.06		$	0.00		$	0.06		$	0.00		$	0.06		$	0.00		$	0.06		$	0.00


¹	The three months ended September 30, 2011, includes a pre-tax gain of $132.2 related to the sale of approximately half of our holdings in Facebook, Inc.

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

+ References+ Details

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2011
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On February 24, 2012, we announced that our Board had approved a new share repurchase program to repurchase from time to time up to $300.0 of our common stock (the “2012 share repurchase program”). The authorization for repurchases under the 2012 share repurchase program is in addition to any amounts remaining available for repurchase under the 2011 share repurchase program. See Note 6 for further information on the 2011 share repurchase program. We may effect repurchases under the 2012 share repurchase program through open market purchases, trading plans established in accordance with SEC rules, derivative transactions or other means. The timing and amount of repurchases under the authorization will depend on market conditions and our other funding requirements. The 2012 share repurchase program has no expiration date. In addition, on February 24, 2012, we announced the exercise of the Company's option to redeem for cash all remaining 4.25% Notes outstanding on the redemption date, which will be March 26, 2012. Under the terms of the 4.25% Notes, as a consequence of our exercise of our option to redeem, holders may elect to convert their 4.25% Notes into common stock at any time prior to the redemption date. The aggregate redemption price will be the $400.0 aggregate principal amount of the 4.25% Notes, plus accrued and unpaid interest to, but excluding, the redemption date, less the principal amount of any 4.25% Notes required to have been repurchased by us on March 15, 2012 or previously converted. See Note 3 for further information on the holders' repurchase and conversion rights.

Summary of Significant Accounting Policies Principles of Consolidation (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The Consolidated Financial Statements include the accounts of the Company and its consolidated subsidiaries, most of which are wholly owned. Investments in companies over which we do not have control, but the ability to exercise significant influence, are accounted for using the equity method of accounting. Investments in companies over which we have neither control nor have the ability to exercise significant influence are accounted for under the cost method. All intercompany accounts and transactions have been eliminated in consolidation. We have consolidated certain entities meeting the definition of variable interest entities, and the inclusion of these entities does not have a material impact on our Consolidated Financial Statements.

Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Topic 323

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2196966

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6382870&loc=d3e33801-111570

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-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 46R

-Paragraph 4

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Accounting Standards Codification

-Topic 860

-SubTopic 40

-Section 45

-URI http://asc.fasb.org/section&trid=2197723

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-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-URI http://asc.fasb.org/subtopic&trid=2197087

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6921930&loc=d3e5614-111684

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.3A-02)

-URI http://asc.fasb.org/extlink&oid=6959686&loc=d3e355033-122828

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-Name FASB Interpretation (FIN)

-Number 46R

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-Topic 235

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-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 46

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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 2-6

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-Name FASB Interpretation (FIN)

-Number 46R

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 5, 6, 16-19

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a(2)

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 96-16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 97-2

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 18: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 3A

-Section 02, 03

Reference 19: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph k

-Article 1

+ Details

Summary of Significant Accounting Policies Use of Estimates (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires us to make judgments, assumptions and estimates that affect the amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the reporting date and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates and assumptions.

Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.

+ References+ Details

Summary of Significant Accounting Policies Revenue Recognition (Policies)

12 Months Ended

Dec. 31, 2011

Accounting Policies [Abstract]

Revenue Recognition

•


•	Fees are recognized on a straight-line or monthly basis when service is provided essentially on a pro-rata basis and the terms of the contract support monthly basis accounting.

•

Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.

+ References+ Details

Summary of Significant Accounting Policies Cash and Cash Equivalents (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents Cash equivalents are highly liquid investments, which include certificates of deposit, government securities, commercial paper and time deposits with original maturities of three months or less at the time of purchase and are stated at estimated fair value, which approximates cost. Cash is maintained at multiple high-credit quality financial institutions.

Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 7, 8, 9, 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Technical Practice Aid (TPA)

-Number 2110

-Paragraph 6

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Financial Reporting Release (FRR)

-Number 203

-Paragraph 02-03

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 305

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2122427

+ Details

Summary of Significant Accounting Policies Short-Term Marketable Securities (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Short-Term Marketable Securities	Short-Term Marketable Securities Short-term marketable securities include investment-grade time deposits, commercial paper and government securities with maturities greater than three months but less than twelve months. These securities are classified as available-for-sale and are carried at fair value with net unrealized gains and losses reported as a component of accumulated other comprehensive loss, which is a component of stockholders’ equity. The cost of securities is determined based upon the average cost of the securities sold.

Disclosure of accounting policy for investments in debt and equity securities that have readily determinable fair values (marketable securities). At a minimum, the disclosure might address accounting policies for investments classified as trading, available for sale, or held to maturity and may include how the entity determines whether impairments of available for sale or held to maturity investments are other than temporary, how the fair values of the entity's securities are determined, and the entity's accounting treatment for transfers between investment categories.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section M

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10, 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 7-16

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 2, 12

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 7, 8, 9, 13, 14, 15, 16, 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2196929

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 320

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62652-112803

+ Details

Summary of Significant Accounting Policies Allowance for Doubtful Accounts (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The allowance for doubtful accounts is estimated based on the aging of accounts receivable, reviews of client credit reports, industry trends and economic indicators, as well as reviews of recent payment history for specific customers. The estimate is based largely on a formula-driven calculation but is supplemented with economic indicators and knowledge of potential write-offs of specific client accounts.

Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 114

-Paragraph 20

-Subparagraph b

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 92-5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3-5

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2196772

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 20

-URI http://asc.fasb.org/subtopic&trid=2196816

+ Details

Summary of Significant Accounting Policies Expenditures Billable to Clients (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Expenditures Billable to Clients	Expenditures Billable to Clients Expenditures billable to clients are primarily comprised of production and media costs that have been incurred but have not yet been billed to clients, as well as fees that have been earned which have not yet been billed to clients. Unbilled amounts are presented in expenditures billable to clients regardless of whether they relate to our fees or production and media costs. A provision is made for unrecoverable costs as deemed appropriate.

Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6386783&loc=d3e4556-108314

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 6

-Subparagraph a

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 3

-Section A

-Paragraph 9

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 81-1

-Paragraph 69-75

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-Publisher SEC

-Name Financial Reporting Release (FRR)

-Number 206

-Chapter 2

-Paragraph b

-Subparagraph i, ii

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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 4

-Paragraph 3, 5-10, 15, 16, 17

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2126999

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6386783&loc=d3e4492-108314

+ Details

Summary of Significant Accounting Policies Investments (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Investments	Investments Our investments in publicly traded companies over which we do not exert a significant influence are classified as available-for-sale. These investments are reported at fair value based on quoted market prices with net unrealized gains and losses reported as a component of accumulated other comprehensive loss. Our non-publicly traded investments and all other publicly traded investments, including investments to fund certain deferred compensation and retirement obligations, are accounted for using the equity method or cost method. We do not disclose the fair value for equity method investments or investments held at cost as it is not practical to estimate fair value since there is no readily available market data and it is cost prohibitive to obtain independent valuations. We regularly review our equity and cost method investments to determine whether a significant event or change in circumstances has occurred that may impact the fair value of each investment. In the event a decline in fair value of an investment occurs, we determine if the decline has been other-than-temporary. We consider our investments strategic and long-term in nature, so we determine if the fair value decline is recoverable within a reasonable period. For our investments, we evaluate fair value based on specific information (valuation methodologies, estimates of appraisals, financial statements, etc.) in addition to quoted market price, if available. We consider all known quantitative and qualitative factors in determining if an other-than-temporary decline in value of an investment has occurred.

Disclosure of accounting policy for investments in financial assets, including marketable securities (debt and equity securities with readily determinable fair values), investments accounted for under the equity method and cost method, securities borrowed and loaned, and repurchase and resale agreements. For marketable securities, the disclosure may include the entity's accounting treatment for transfers between investment categories and how the fair values for such securities are determined. Also, for all investments, an entity may describe its policy for assessing, recognizing and measuring impairment of the investment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2,12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section M

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 7-18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10, 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 7-16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 2, 12

-Article 5

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13433-108611

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

+ Details

Summary of Significant Accounting Policies Derivatives (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Derivatives	Derivatives We are exposed to market risk related to interest rates, foreign currency rates and certain balance sheet items. From time to time we enter into derivative instruments for risk management purposes, and not for speculative purposes. We evaluate the terms of our derivative instruments to determine if they are recorded on our balance sheet in equity or as an asset or liability that gets subsequently adjusted in earnings based on fair value each reporting period. We evaluate our derivative instruments for hedge accounting both at inception and throughout the hedge period. We recognize the changes in fair value of the interest rate swap agreements as well as the changes in the fair value of the underlying debt in other income, net.

Disclosure of accounting policy for its derivative instruments and hedging activities. Disclosure may include: (1) Each method used to account for derivative financial instruments and derivative commodity instruments ("derivatives"); (2) the types of derivatives accounted for under each method; (3) the criteria required to be met for each accounting method used, including a discussion of the criteria required to be met for hedge or deferral accounting and accrual or settlement accounting (for example, whether and how risk reduction, correlation, designation, and effectiveness tests are applied); (4) the accounting method used if the criteria specified for hedge accounting are not met; (5) the method used to account for termination of derivatives designated as hedges or derivatives used to affect directly or indirectly the terms, fair values, or cash flows of a designated item; (6) the method used to account for derivatives when the designated item matures, is sold, is extinguished, or is terminated. In addition, the method used to account for derivatives designated to an anticipated transaction, when the anticipated transaction is no longer likely to occur; and (7) where and when derivatives, and their related gains or losses are reported in the statement of financial position, cash flows, and results of operations and (8) an accounting policy decision to offset fair value amounts with counterparties. An entity may also describe its embedded derivatives, and the method(s) used to determine the fair values of derivatives and any significant assumptions used in such valuations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph n

-Article 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 39

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41638-113959

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579240-113959

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41620-113959

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(n))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6935481&loc=d3e41675-113959

+ Details

Summary of Significant Accounting Policies Furniture, Equipment and Leasehold Improvements (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Furniture, Equipment and Leasehold Improvements	Furniture, Equipment and Leasehold Improvements Furniture, equipment and leasehold improvements are stated at cost, net of accumulated depreciation. Furniture and equipment are depreciated generally using the straight-line method over the estimated useful lives of the related assets, which range from 3 to 7 years for furniture, equipment and computer software costs, 10 to 35 years for buildings and the shorter of the useful life or the remaining lease term for leasehold improvements.

Disclosure of accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 22

-Paragraph 12, 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 13

-Subparagraph a

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 5

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 9

-Section C

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 34

-Paragraph 8, 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2155824

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.13(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Summary of Significant Accounting Policies Goodwill and Other Intangible Assets (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets We have accounted for our business combinations using the acquisition accounting method beginning in 2009, while we utilized the purchase accounting method in prior years. Both accounting methods require the fair value of each acquisition to be allocated to the underlying net assets based on their respective estimated fair values and the remainder allocated to goodwill and other intangible assets. The acquisition method requires the noncontrolling interests, if any, to be recorded at fair value and goodwill and other intangibles to be recorded as if we acquired the entire business, proportionately allocated between the controlling and noncontrolling owner. The purchase accounting method required goodwill and other intangibles to be recorded based on our ownership interest in the business we acquired. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment and involves the use of significant estimates, including projections of future cash inflows and outflows, discount rates, asset lives and market multiples. Considering the characteristics of advertising, specialized marketing and communication services companies, our acquisitions usually do not have significant amounts of tangible assets, as the principal asset we typically acquire is creative talent. As a result, a substantial portion of the purchase price is allocated to goodwill and other intangible assets. We review goodwill and other intangible assets with indefinite lives not subject to amortization as of October 1^st each year and whenever events or significant changes in circumstances indicate that the carrying value may not be recoverable. We evaluate the recoverability of goodwill at a reporting unit level. We have 11 reporting units that were subject to the 2011 annual impairment testing. Our reporting unit structure did not change during 2011. We review intangible assets with definite lives subject to amortization whenever events or circumstances indicate that a carrying amount of an asset may not be recoverable. Recoverability of these assets is determined by comparing the carrying value of these assets to the estimated undiscounted future cash flows expected to be generated by these assets. These assets are impaired when their carrying value exceeds their fair value. Impaired intangible assets with definite lives subject to amortization are written down to their fair value with a charge to expense in the period the impairment is identified. Intangible assets with definite lives are amortized on a straight-line basis with estimated useful lives generally between 7 and 15 years. Events or circumstances that might require impairment testing include the loss of a significant client, the identification of other impaired assets within a reporting unit, loss of key personnel, the disposition of a significant portion of a reporting unit, significant decline in stock price or a significant adverse change in business climate or regulations. We have adopted new authoritative guidance for goodwill which permits an entity to first assess qualitative factors to determine whether the fair value of a reporting unit is less than its carrying value. Qualitative factors to consider may include macroeconomic conditions, industry and market considerations, cost factors that may have a negative effect on earnings, overall financial performance, and other relevant entity-specific events such as changes in management, key personnel, strategy or customers, as well as contemplation of bankruptcy or pending litigation. If, after assessing the totality of events or circumstances such as those described above, an entity determines that it is "more likely than not" that the fair value of a reporting unit is less than its carrying value, then the entity is required to perform a two-step quantitative impairment test to identify and measure impairment, if necessary. Otherwise, no additional testing is required. For reporting units not included in the qualitative assessment, or for any reporting units identified in the qualitative assessment as "more likely than not" that the fair value is less than its carrying value, the first step of the quantitative impairment test is performed. The first step of the impairment test is a comparison of the fair value of each reporting unit to its carrying value, including goodwill. The sum of the fair values of all our reporting units is reconciled to our current market capitalization plus an estimated control premium. Goodwill allocated to a reporting unit whose fair value is equal to or greater than its carrying value is not impaired, and no further testing is required. Should the carrying amount for a reporting unit exceed its fair value, then the first step of the impairment test has failed and the magnitude of any goodwill impairment is determined under the second step, which is a comparison of the implied fair value of a reporting unit’s goodwill to its carrying value. Goodwill of a reporting unit is impaired when its carrying value exceeds its implied fair value. Impaired goodwill is written down to its implied fair value with a charge to expense in the period the impairment is identified. The fair value of a reporting unit for 2011 and 2010 was estimated using a combination of the income approach, which incorporates the use of the discounted cash flow method, and the market approach, which incorporates the use of earnings and revenue multiples based on market data.

Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.

+ References+ Details

Summary of Significant Accounting Policies Foreign Currencies (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Foreign Currencies	Foreign Currencies The functional currency of our foreign operations is generally their respective local currency. Assets and liabilities are translated at the exchange rates in effect at the balance sheet date and revenues and expenses are translated at the average exchange rates during the period presented. The resulting translation adjustments are recorded as a component of accumulated other comprehensive loss, which is a component of stockholders’ equity. Currency transaction gains or losses arising from transactions in currencies other than the functional currency are included in office and general expenses. Foreign currency transactions resulted in a pre-tax losses of $0.9 in 2011, $0.7 in 2010 and $4.7 in 2009. We monitor the currencies of countries in which we operate in order to determine if the country should be considered a highly inflationary environment. A currency is determined to be highly inflationary when there is cumulative inflation of approximately 100% or more over a three-year period. If this occurs the functional currency of that country would be changed to our reporting currency, the U.S. dollar, and foreign exchange gains or losses would be recognized on all monetary transactions, assets and liabilities denominated in currencies other than the U.S. dollar until the currency is no longer considered highly inflationary.

Disclosure of accounting policy for (1) transactions denominated in a currency other than the reporting enterprise's functional currency, (2) translating foreign currency financial statements that are incorporated into the financial statements of the reporting enterprise by consolidation, combination, or the equity method of accounting, and (3) remeasurement of the financial statements of a foreign reporting enterprise in a hyperinflationary economy.

+ References+ Details

Summary of Significant Accounting Policies Income Taxes (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Income Taxes	Income Taxes The provision for income taxes includes U.S. federal, state, local and foreign taxes. Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected to be reversed. We evaluate the realizability of our deferred tax assets and establish a valuation allowance when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. We evaluate our tax positions using the “more likely than not” recognition threshold and then apply a measurement assessment to those positions that meet the recognition threshold. We have established tax reserves that we believe to be adequate in relation to the potential for additional assessments in each of the jurisdictions in which we are subject to taxation. We regularly assess the likelihood of additional tax assessments in those jurisdictions and adjust our reserves as additional information or events require.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-URI http://asc.fasb.org/subtopic&trid=2144681

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 6-34, 43, 47, 49

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 4

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 25

-URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e32247-109318

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32840-109319

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 954

-SubTopic 740

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 30

-URI http://asc.fasb.org/subtopic&trid=2144749

Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e32280-109318

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 17

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32809-109319

+ Details

Summary of Significant Accounting Policies Redeemable Noncontrolling Interests (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Redeemable Noncontrolling Interests	Redeemable Noncontrolling Interests Many of our acquisitions include provisions under which the noncontrolling equity owners can require us to purchase additional interests in a subsidiary at their discretion. Payments for these redeemable noncontrolling interests are contingent upon achieving projected operating performance targets and satisfying other conditions specified in the related agreements and are subject to revisions as the earn-out periods progress. We record these redeemable noncontrolling interests in “mezzanine equity” in our Consolidated Balance Sheets. Each reporting period, redeemable noncontrolling interests are reported at their estimated redemption value, but not less than their initial fair value. Any adjustment to the redemption value above initial value prior to exercise will also impact retained earnings or additional paid-in capital, but will not impact net income. Adjustments as a result of currency translation will affect the redeemable noncontrolling interest balance, but do not impact retained earnings or additional paid-in capital.

Disclosure of accounting policy for subsidiaries or other investments that are consolidated, including the accounting treatment for intercompany accounts or transactions and any noncontrolling interest.

+ References+ Details

Summary of Significant Accounting Policies Earnings Per Share (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Earnings Per Share	Earnings Per Share (“EPS”) Basic EPS available to IPG common stockholders equals net income available to IPG common stockholders divided by the weighted-average number of common shares outstanding for the applicable period. Diluted EPS equals net income available to IPG common stockholders adjusted to exclude, if dilutive, preferred stock dividends, allocation to participating securities, interest expense related to potentially dilutive securities calculated using the effective interest rate method and the benefit from the preferred stock repurchased, divided by the weighted-average number of common shares outstanding, plus any additional common shares that would have been outstanding if potentially dilutive shares had been issued. Diluted EPS reflect the potential dilution that would occur if certain potentially dilutive securities or debt obligations were exercised or converted into common stock. The potential issuance of common stock is assumed to occur at the beginning of the year (or at the time of issuance of the potentially dilutive instrument, if later) and the incremental shares are included using the treasury stock or “if-converted” method. The proceeds utilized in applying the treasury stock method consist of the amount, if any, to be paid upon exercise and, as it relates to stock-based compensation, the amount of compensation cost attributed to future service not yet recognized and any tax benefits credited to additional paid-in-capital related to the exercise. These proceeds are then assumed to be used to purchase common stock at the average market price of our stock during the period. The incremental shares (difference between the shares assumed to be issued and the shares assumed to be purchased), to the extent they would have been dilutive, are included in the denominator of the diluted EPS calculation. We may be required to calculate basic EPS using the two-class method, as a result of our redeemable noncontrolling interests. To the extent that the redemption value increases and exceeds the then-current fair value of a redeemable noncontrolling interest, net income available to IPG common stockholders (used to calculate EPS) could be negatively impacted by that increase, subject to certain limitations. The partial or full recovery of these reductions to net income available to IPG common stockholders (used to calculate EPS) is limited to cumulative prior-period reductions. For the years ended December 31, 2011, 2010 and 2009, there was no impact to EPS for adjustments related to our redeemable noncontrolling interests.

Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.

+ References+ Details

Summary of Significant Accounting Policies Pension and Postretirement Benefits (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Pension and Postretirement Benefits	Pension and Postretirement Benefits We have pension and postretirement benefit plans covering certain domestic and international employees. We use various actuarial methods and assumptions in determining our net pension and postretirement benefit costs and obligations, including the discount rate used to determine the present value of future benefits, expected long-term rate of return on plan assets and healthcare cost trend rates. The overfunded or underfunded status of our pension and postretirement benefit plans is recorded on our Consolidated Balance Sheet.

Disclosure of accounting policy for pension and other postretirement benefit plans. This accounting policy may address (1) the types of plans sponsored by the entity, and the benefits provided by each plan (2) groups that participate in (or are covered by) each plan (3) how plan assets, liabilities and expenses are measured, including the use of any actuaries and (4) significant assumptions used by the entity to value plan assets and liabilities and how such assumptions are derived.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 106

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+ Details

Summary of Significant Accounting Policies Stock-Based Compensation (Policies)	12 Months Ended
	Dec. 31, 2011
Accounting Policies [Abstract]
Stock-Based Compensation	Stock-Based Compensation Compensation costs related to share-based transactions, including employee stock options, are recognized in the Consolidated Financial Statements based on fair value. Stock-based compensation expense is generally recognized ratably over the requisite service period based on the estimated grant-date fair value, net of estimated forfeitures.

Basic and Diluted Earnings Per Common Share Available to IPG Common Stockholders

Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement.

+ References+ Details

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

The following sets forth basic and diluted earnings per common share available to IPG common stockholders.



	Years ended December 31,
	2011		2010			2009
Net income available to IPG common stockholders - basic	$	520.7	$	271.2		$	93.6
Adjustments: Effect of dilutive securities
Interest on 4.25% Notes	1.4		1.4			1.4
Interest on 4.75% Notes	4.1		4.0			0.0
Preferred stock dividends	11.6		0.0			0.0
Benefit from preferred stock repurchased ¹	0.0		(21.7		)	0.0
Net income available to IPG common stockholders - diluted	$	537.8	$	254.9		$	95.0


Weighted-average number of common shares outstanding - basic	465.5		473.6			468.2
Add: Effect of dilutive securities
Restricted stock, stock options and other equity awards	9.1		11.3			7.7
4.25% Notes	33.0		32.2			32.2
4.75% Notes	16.5		16.1			0.0
Preferred stock outstanding	16.5		0.0			0.0
Preferred stock repurchased	0.0		8.9			0.0

Weighted-average number of common shares outstanding - diluted	540.6		542.1			508.1


Earnings per share available to IPG common stockholders - basic	$	1.12	$	0.57		$	0.20
Earnings per share available to IPG common stockholders - diluted	$	0.99	$	0.47		$	0.19

Potential Shares Excluded from Diluted Earnings Per Share Calculation

The following table presents the potential shares excluded from the diluted earnings per share calculation because the effect of including these potential shares would be antidilutive.



	Years ended December 31,
	2011	2010	2009
4.75% Notes	0.0	0.0	16.1
4.50% Notes	0.0	0.0	0.6
Preferred stock outstanding	0.0	16.2	38.4
Total	0.0	16.2	55.1
Securities excluded from the diluted earnings per share calculation because the exercise price was greater than the average market price:
Stock options ¹	8.9	15.6	21.2
Warrants²	0.0	0.0	67.9


¹	These options are outstanding at the end of the respective periods. In any period in which the exercise price is less than the average market price, these options have the potential to be dilutive, and application of the treasury stock method would reduce this amount.


²	The potential dilutive impact of the warrants is based upon the difference between the market price of one share of our common stock and the stated exercise prices of the warrants, adjusted to reflect the period during which the warrants were outstanding. The warrants expired in June 2009.

Debt and Credit Arrangements (Tables)

12 Months Ended

Dec. 31, 2011

Debt Disclosure [Abstract]

Summary of Carrying Amounts and Fair Values of Long-term Debt

A summary of the carrying amounts and fair values of our long-term debt is listed below.



	Effective Interest Rate		December 31,
			2011				2010
			Book Value		Fair Value ¹		Book Value		Fair Value ¹
7.25% Senior Unsecured Notes due 2011	7.25	%	$	0.0	$	0.0	$	36.3	$	37.0
6.25% Unsecured Notes due 2014 (less unamortized discount of $0.3)	6.29	%	354.3		374.5		353.3		378.0
10.0% Senior Unsecured Notes due 2017 (less unamortized discount of $9.4)	10.38	%	590.6		690.0		589.4		705.0
4.75% Convertible Senior Notes due 2023 (plus unamortized premium of $2.7)	3.50	%	202.7		220.5		205.0		235.0
4.25% Convertible Senior Notes due 2023 (plus unamortized premium of $3.0)	0.58	%	403.0		405.5		417.4		444.4
Other notes payable and capitalized leases			65.1				20.8
Total long-term debt			1,615.7				1,622.2
Less: current portion ²			404.8				38.9
Long-term debt, excluding current portion			$	1,210.9			$	1,583.3


¹	Fair values are derived from trading quotes by institutions making a market in the securities and estimations of value by those institutions using proprietary models.

Annual Maturities of Long-term Debt

Annual maturities are scheduled as follows based on the book value as of December 31, 2011.



2012 ¹	$	1.8
2013 ²	16.0
2014	354.4
2015	0.1
2016	0.1
Thereafter	1,243.3
Total long-term debt	$	1,615.7


¹	Holders of our 4.25% Notes may require us to repurchase their notes for cash at par in March 2012. The 4.25% Notes are redeemable in whole or in part at our option beginning March 15, 2012.


²	Holders of our 4.75% Convertible Senior Notes due 2023 (the “4.75% Notes”) may require us to repurchase their notes for cash, stock or a combination, at our election, at par in March 2013.

Conversion Rates and Conversion Prices for Convertible Notes

The conversion rates and corresponding conversion prices for our Convertible Notes as of December 31, 2011, 2010 and 2009 are listed below.



	December 31,
	2011		2010		2009
Conversion price	$	12.13	$	12.42	$	12.42
Conversion rate per note (actual number)	82.4612		80.5153		80.5153

Repurchase and Redemption Options for Convertible Notes

The following table details when the repurchase and redemption options occur for our 4.25% and 4.75% Notes.



	4.25% Notes		4.75% Notes
Repurchase options
For cash on		3/15/2012
For cash, common stock or combination on	1)	3/15/2015	1)	3/15/2013
	2)	3/15/2018	2)	3/15/2018
Change of control events occurring prior to		3/15/2012		3/15/2013
Redemption options
For cash on or after		3/15/2012		3/15/2013

Strike Price and Cap Price for Capped Call Transaction

The strike price and cap price related to the capped call options as of December 31, 2011 and 2010 are listed below.



	December 31,
	2011		2010
Strike price	$	12.13	$	12.42
Cap price	$	17.83	$	18.26

Summary of Credit Facilities

A summary of our credit facilities is presented below.



	December 31,
	2011								2010
	Total Facility		Amount Outstanding		Letters of Credit		Total Available		Total Facility		Amount Outstanding		Letters of Credit		Total Available
Committed credit agreement	$	1,000.0	$	0.0	$	16.2	$	983.8	$	650.0	$	0.0	$	16.2	$	633.8
Uncommitted credit agreements	$	458.3	$	153.5	$	2.6	$	302.2	$	455.2	$	114.8	$	0.1	$	340.3

Summary of Financial Covenants in Credit Agreement

The financial covenants in the Credit Agreement require that we maintain, as of the end of each fiscal quarter, certain financial measures for the four quarters then ended. The table below sets forth the financial covenants in effect as of December 31, 2011 and thereafter.



Interest coverage ratio (not less than): ¹		5.00x
Leverage ratio (not greater than): ²		2.75x


¹	The interest coverage ratio is defined as EBITDA, as defined in the Credit Agreement, to net interest expense plus cash dividends on convertible preferred stock for the four quarters then ended.


²	The leverage ratio is defined as debt as of the last day of such fiscal quarter to EBITDA, as defined in the Credit Agreement, for the four quarters then ended.

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

Cash Paid For Current And Prior Years' Acquisitions

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+ Details

Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

Business Combinations [Abstract]

Details of cash paid for current and prior years' acquisitions are listed below.



	Years ended December 31,
	2011			2010			2009
Cost of investment: current-year acquisitions	$	48.0		$	47.1		$	3.8
Cost of investment: prior-year acquisitions	105.1			49.6			74.6
Less: net cash acquired	(18.5		)	(5.3		)	(0.1		)
Total cost of investment ¹	134.6			91.4			78.3
Operating expense²	0.5			3.0			0.0

Total cash paid for acquisitions	$	135.1		$	94.4		$	78.3


²	Represents cash payments made that were either in excess of the contractual value or contingent upon the future employment of the former owners of acquired companies.

Redeemable Noncontrolling Interest

The following table presents changes in our redeemable noncontrolling interests.



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	291.2		$	277.8		$	288.4
Change in related noncontrolling interest balance	(7.7		)	1.5			2.5
Changes in redemption value of redeemable noncontrolling interests:
Additions	17.9			31.9			0.5
Redemptions and reclassifications	(70.7		)	(30.1		)	(5.3		)
Redemption value adjustments¹	12.7			10.1			(8.3		)
Balance at end of period	$	243.4		$	291.2		$	277.8


¹	Redeemable noncontrolling interests are reported at their estimated redemption value in each reporting period, but not less than their initial fair value. Any adjustment to the redemption value impacts retained earnings or additional paid-in capital, except adjustments as a result of currency translation.

Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity.

Valuation and Qualifying Accounts - Allowance for Uncollectible Accounts Receivable

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-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 25

-Appendix A

+ Details

Supplementary Data (Tables)

12 Months Ended

Dec. 31, 2011

Supplementary Data [Abstract]

Valuation and Qualifying Accounts – Allowance for Uncollectible Accounts Receivable



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	63.1		$	66.0		$	63.9
Charges to costs and expenses	10.4			10.7			19.3
Reversals to other accounts¹	(0.5		)	(0.4		)	(2.8		)
Deductions:
Dispositions	0.0			(0.5		)	(0.2		)
Uncollectible accounts written off	(16.3		)	(11.8		)	(16.5		)
Foreign currency translation adjustment	(1.3		)	(0.9		)	2.3
Balance at end of period	$	55.4		$	63.1		$	66.0


¹	Amounts relate to allowance for doubtful accounts of acquired and newly consolidated companies, miscellaneous other amounts and reclassifications.

Furniture, Equipment and Leasehold Improvements, net



	December 31,
	2011			2010
Furniture and equipment	$	881.5		$	881.5
Leasehold improvements	593.0			605.4
Land and buildings	111.6			114.5
	1,586.1			1,601.4
Less: accumulated depreciation	(1,126.3		)	(1,147.1		)
Total furniture, equipment and leasehold improvements, net	$	459.8		$	454.3

Accrued Liabilities

The following table presents the components of accrued liabilities.



	December 31,
	2011		2010
Salaries, benefits and related expenses	$	520.6	$	470.0
Office and related expenses	57.9		62.0
Acquisition obligations	43.7		63.5
Interest	40.3		41.5
Professional fees	25.3		24.6
Other	139.3		118.9
Total accrued liabilities	$	827.1	$	780.5

Other Income, net

Results of operations include certain items which are not directly associated with our revenue-producing operations.



	Years ended December 31,
	2011		2010			2009
Gains on sales of businesses and investments	$	125.9	$	4.3		$	10.2
Net loss on early extinguishment of debt	0.0		(0.1		)	(25.1		)
Vendor discounts and credit adjustments	19.4		12.7			24.4
Other income (expense), net	4.9		(4.0		)	2.2
Total other income (expense), net	$	150.2	$	12.9		$	11.7

Supplemental Cash Flow Information



	Years ended December 31,
	2011		2010		2009
Cash paid for interest	$	138.9	$	139.8	$	138.6
Cash paid for income taxes, net of refunds ¹	102.0		87.3		57.3


¹	Refunds of $25.4, $28.7 and $55.0 were received for the years ended December 31, 2011, 2010 and 2009, respectively.

Goodwill and Intangible Assets Disclosure [Abstract]

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details

Intangible Assets Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Goodwill

The changes in the carrying value of goodwill for our segments, IAN and CMG, for the years ended December 31, 2011 and 2010 are listed below.



	IAN			CMG			Total ¹
Balance as of December 31, 2009	$	2,844.7		$	476.3		$	3,321.0
Current year acquisitions	37.5			1.3			38.8
Contingent and deferred payments for prior acquisitions	34.4			0.7			35.1
Other ²	(10.6		)	(15.8		)	(26.4		)
Balance as of December 31, 2010	$	2,906.0		$	462.5		$	3,368.5
Current year acquisitions	68.5			28.4			96.9
Contingent and deferred payments for prior acquisitions	0.8			0.0			0.8
Other ²	(22.4		)	0.5			(21.9		)
Balance as of December 31, 2011	$	2,952.9		$	491.4		$	3,444.3


¹	For all periods presented we have not recorded a goodwill impairment charge.


²	Primarily includes foreign currency translation adjustments.

Schedule of Finite-Lived Intangible Assets by Major Class

The following table provides a summary of other intangible assets, which are included in other assets on our Consolidated Balance Sheets.



	December 31,
	2011							2010
	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists	$	165.9	$	(81.7	)	$	84.2	$	147.0	$	(69.0	)	$	78.0
Trade names	52.9		(12.3		)	40.6		45.1		(9.7		)	35.4
Other	17.3		(7.8		)	9.5		17.4		(7.7		)	9.7
Total	$	236.1	$	(101.8	)	$	134.3	$	209.5	$	(86.4	)	$	123.1

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The estimated annual amortization expense for other intangible assets for the next five years as of December 31, 2011 is listed below.



	2012		2013		2014		2015		2016
Estimated amortization expense	$	26.9	$	26.8	$	24.3	$	16.4	$	5.5

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References+ Details

Schedule of Income before Income Tax, Domestic and Foreign

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

+ References+ Details

Income Taxes Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Tax Disclosure [Abstract]

The components of income before income taxes, equity earnings and the impact of noncontrolling interests are listed below.



	Years ended December 31,
	2011		2010		2009
Domestic	$	428.4	$	216.2	$	141.9
Foreign	310.0		234.4		90.5
Total	$	738.4	$	450.6	$	232.4

Schedule of Components of Provision for Income Taxes

The provision for income taxes is listed below.



	Years ended December 31,
	2011			2010			2009
U.S. federal income taxes (including foreign withholding taxes):
Current	$	0.9		$	13.7		$	(48.4	)
Deferred	92.3			60.2			38.7
	93.2			73.9			(9.7		)
State and local income taxes:
Current	12.3			16.8			(6.1		)
Deferred	11.3			(0.1		)	40.1
	23.6			16.7			34.0
Foreign income taxes:
Current	93.1			84.8			55.4
Deferred	(19.7		)	(4.1		)	10.4
	73.4			80.7			65.8
Total	$	190.2		$	171.3		$	90.1

Schedule of Effective Income Tax Rate Reconciliation



	Years ended December 31,
	2011			2010			2009
U.S. federal statutory income tax rate	35.0		%	35.0		%	35.0		%

Income tax provision at U.S. federal statutory rate	$	258.4		$	157.7		$	81.3
State and local income taxes, net of federal income tax benefit	15.3			10.8			22.1
Impact of foreign operations, including withholding taxes	(21.9		)	4.7			26.9
Change in net valuation allowance ¹	(32.9		)	(2.4		)	12.4
Worthless securities deduction	(23.0		)	(2.5		)	(2.3		)
(Decreases) increases in unrecognized tax benefits, net	(2.7		)	8.9			(55.6		)
Stock based compensation	0.2			0.2			16.4
Other	(3.2		)	(6.1		)	(11.1		)
Provision for income taxes	$	190.2		$	171.3		$	90.1
Effective income tax rate on operations	25.8		%	38.0		%	38.8		%


¹	Reflects changes in valuation allowance that impacted the effective income tax rate for each year presented.

Schedule of Deferred Tax Assets and Liabilities

The components of deferred tax assets and liabilities are listed below.



	December 31,
	2011			2010
Postretirement/post-employment benefits	$	42.4		$	34.5
Deferred compensation	205.2			192.3
Pension costs	14.2			23.9
Basis differences in fixed assets	81.8			83.0
Rent	38.6			15.2
Interest	54.8			51.1
Accruals and reserves	55.6			42.0
Allowance for doubtful accounts	8.1			10.6
Basis differences in intangible assets	(330.1		)	(263.3		)
Investments in equity securities	30.8			5.3
Tax loss/tax credit carry forwards	478.1			621.5
Restructuring and other reorganization-related costs	2.0			2.7
Other	92.2			55.6
Total deferred tax assets, net	773.7			874.4
Valuation allowance	(489.9		)	(508.1		)
Net deferred tax assets	$	283.8		$	366.3

Summary of Valuation Allowance

The change in the valuation allowance is listed below.



	Years ended December 31,
	2011			2010			2009
Balance at beginning of period	$	508.1		$	425.5		$	379.5
(Reversed) charged to costs and expenses	(25.1		)	92.3			24.7
Charged (reversed) to gross tax assets and other accounts	6.9			(9.7		)	21.3
Balance at end of period	$	489.9		$	508.1		$	425.5

Schedule of Unrecognized Tax Benefits Activity

The table below summarizes the activity related to our unrecognized tax benefits.



	December 31,
	2011			2010			2009
Balance at beginning of period	$	146.7		$	160.5		$	174.9
Increases as a result of tax positions taken during a prior year	5.3			4.6			7.8
Decreases as a result of tax positions taken during a prior year	(18.1		)	(28.1		)	(50.9		)
Settlements with taxing authorities	(5.0		)	(10.2		)	0.0
Lapse of statutes of limitation	(0.2		)	(0.6		)	(5.0		)
Increases as a result of tax positions taken during the current year	32.3			20.5			33.7
Balance at end of period	$	161.0		$	146.7		$	160.5

Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

+ References+ Details

Incentive Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Stock-based Compensation Expense

The amount of stock-based compensation expense as reflected in salaries and related expenses in our Consolidated Statement of Operations, and the related tax benefit are listed below.



	Years ended December 31,
	2011		2010		2009
Stock options	$	6.7	$	7.4	$	10.2
Stock-settled awards	21.9		32.7		34.2
Cash-settled awards	5.7		10.9		9.3
Performance-based awards	23.3		11.0		6.4
Employee stock purchase plan	0.7		0.5		0.7
Other ¹	4.1		4.3		1.5
Stock-based compensation expense	$	62.4	$	66.8	$	62.3
Tax benefit	$	22.1	$	22.1	$	21.5


1	Represents charges recorded for severance expense related to stock-based compensation awards.

Schedule of Stock Options Activity

The following tables are a summary of stock option activity during 2011.



	Options		Weighted- Average Exercise Price (per option)		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Stock options outstanding as of January 1, 2011	22.2		$	14.43
Granted	0.8		12.48
Exercised	(1.3	)	9.61
Cancelled/expired	(3.0	)	31.19
Forfeited	(0.6	)	5.73
Stock options outstanding as of December 31, 2011	18.1		12.10		4.4	$	20.7
Stock options vested and expected to vest as of December 31, 2011	17.2		12.37		4.3	$	17.8
Stock options exercisable as of December 31, 2011	13.1		14.16		3.2	$	3.3

	Options		Weighted- Average Grant Date Fair Value (per option)		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Non-vested as of January 1, 2011	6.5		$	3.38
Granted	0.8		4.57
Vested	(1.7	)	4.27
Forfeited	(0.6	)	3.11
Non-vested as of December 31, 2011	5.0		3.31		7.5	$	17.5

Summary of Stock Options Assumptions

The fair value of each option grant has been estimated with the following weighted-average assumptions.



	Years ended December 31,
	2011		2010		2009
Expected volatility ¹	39.9	%	42.2	%	68.3	%
Expected term (years) ²	6.7		6.5		6.8
Risk free interest rate ³	2.8	%	3.0	%	2.5	%
Expected dividend yield ⁴	1.9	%	0.0	%	0.0	%


1	The expected volatility used to estimate the fair value of stock options awarded is based on a blend of: (i) historical volatility of our common stock for periods equal to the expected term of our stock options and (ii) implied volatility of tradable forward put and call options to purchase and sell shares of our common stock.


3	The risk free rate is determined using the implied yield currently available for zero-coupon U.S. government issuers with a remaining term equal to the expected term of the options.


4	The expected dividend yield is calculated based on an annualized dividend of $0.24 per share. No dividend yield was assumed in 2010 and 2009 because we did not pay cash dividends on our common stock during those years.

Stock-based Compensation, Grants in Period, Weighted Average Grant Date Fair Value

Stock-based compensation awards expected to be settled in cash have been classified as liabilities in the Consolidated Balance Sheets as of December 31, 2011 and 2010.



	Years ended December 31,
	2011		2010		2009
Stock-Settled Awards:
Awards granted	0.8		3.7		7.8
Weighted-average grant-date fair value (per award)	$	11.94	$	8.47	$	4.21
Total fair value of vested awards distributed	$	63.1	$	36.4	$	23.8
Cash-Settled Awards:
Awards granted	0.0		0.6		1.4
Weighted-average grant-date fair value (per award)	$	8.96	$	8.50	$	4.43
Total fair value of vested awards distributed	$	10.4	$	4.8	$	7.5
Performance-Based Awards:
Awards granted	1.8		0.1		1.7
Weighted-average grant-date fair value (per award)	$	11.58	$	11.02	$	6.25
Total fair value of vested awards distributed	$	30.8	$	4.6	$	29.4

Schedule of Nonvested Stock Activity



	Stock-Settled Awards					Cash-Settled Awards					Performance-Based Awards
	Awards			Weighted- Average Grant-Date Fair Value (per award)		Awards			Weighted- Average Grant-Date Fair Value (per award)		Awards			Weighted- Average Grant-Date Fair Value (per award)
Non-vested as of January 1, 2011	15.0			$	6.96	2.7			$	7.14	3.6			$	8.38
Granted	0.8			11.94		0.0			8.96		1.8			11.58
Vested	(5.3		)	8.82		(0.8		)	9.76		(2.5		)	9.33
Forfeited	(1.3		)	6.41		(0.3		)	7.30		(0.9		)	9.72
Non-vested as of December 31, 2011	9.2			6.41		1.6			5.85		2.0			10.84
Total unrecognized compensation expense remaining	$	14.9				$	3.7				$	12.8
Weighted-average years expected to be recognized over	0.8					0.7					1.9

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2011

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on recurring basis



	December 31, 2011												Balance Sheet Classification
	Level 1			Level 2			Level 3			Total			Balance Sheet Classification
Assets
Cash equivalents	$	1,596.5		$	0.0		$	0.0		$	1,596.5		Cash and cash equivalents
Short-term marketable securities	12.9			0.0			0.0			12.9			Marketable securities
Long-term investments	1.3			9.0			0.0			10.3			Other assets
Total	$	1,610.7		$	9.0		$	0.0		$	1,619.7

As a percentage of total assets	12.5		%	0.1		%	0.0		%	12.6		%

Liabilities
Mandatorily redeemable noncontrolling interests ¹	$	0.0		$	0.0		$	58.9		$	58.9

	December 31, 2010												Balance Sheet Classification
	Level 1			Level 2			Level 3			Total			Balance Sheet Classification
Assets
Cash equivalents	$	1,744.4		$	0.0		$	0.0		$	1,744.4		Cash and cash equivalents
Short-term marketable securities	13.7			0.0			0.0			13.7			Marketable securities
Long-term investments	1.3			13.8			0.0			15.1			Other assets
Total	$	1,759.4		$	13.8		$	0.0		$	1,773.2

As a percentage of total assets	13.5		%	0.1		%	0.0		%	13.6		%

Liabilities
Mandatorily redeemable noncontrolling interests ¹	$	0.0		$	0.0		$	52.0		$	52.0

Assets and liabilities measured at fair value on recurring basis - level 3 reconciliation

The following tables present additional information about assets and liabilities measured at fair value on a recurring basis and for which we utilize Level 3 inputs to determine fair value.



	Years ended December 31,
	2011			2010
	Liabilities			Assets			Liabilities
	Mandatorily redeemable noncontrolling interests			Foreign currency derivatives			Mandatorily redeemable noncontrolling interests
Balance at beginning of period	$	52.0		$	0.6		$	47.8
Level 3 additions	28.1			0.0			2.7
Level 3 reductions	(28.0		)	0.0			(2.9		)
Realized losses included in net income	(6.7		)	(0.6		)	(4.4		)
Foreign currency translation	0.1			0.0			0.0
Balance at end of period	$	58.9		$	0.0		$	52.0

Gross unrealized and realized gains and losses on investments

Gross unrealized and realized gains and losses for our long-term investments and short-term marketable securities are listed below.



	Years ended December 31,
	2011		2010		2009
Reported in comprehensive income
Unrealized gains	$	0.3	$	0.5	$	0.9
Unrealized losses	0.4		0.0		0.5
Reported in other income, net
Realized gains	$	0.0	$	0.2	$	1.0
Realized losses	0.3		0.0		0.6

Tabular disclosure of the realized and unrealized gains and losses reported in the statement of income which have resulted from the sale and holding of marketable securities, respectively, as well as the sale or disposal of cost method investments. Such amounts would include realized gains and losses on the sale or disposal of trading, available-for-sale, and held-to-maturity securities, unrealized gains and losses on trading securities, unrealized gains and losses on available-for-sale and held-to-maturity securities transferred to the trading securities category, realized gains and losses on the sale or disposal of cost method investments, and losses recognized for other than temporary impairments (OTTI) of such investments.

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 21

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph a, b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 7, 13, 16, 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section M

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (c)-(e)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27405-111563

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 5.M)

-URI http://asc.fasb.org/extlink&oid=6784337&loc=d3e87990-122713

+ Details

Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Defined Benefit Plans Disclosures



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
December 31,	2011			2010			2011			2010			2011			2010
Benefit Obligation
Projected benefit obligation as of January 1	$	130.9		$	139.6		$	431.1		$	464.0		$	51.8		$	55.1
Service cost	0.0			0.0			9.6			9.7			0.2			0.3
Interest cost	6.8			7.3			23.3			22.8			2.7			2.8
Benefits paid	(11.9		)	(16.6		)	(21.2		)	(21.1		)	(6.2		)	(7.0		)
Plan participant contributions	0.0			0.0			0.7			0.7			1.4			1.5
Actuarial losses (gains)	3.2			0.6			13.5			(2.3		)	0.9			(0.9		)
Curtailments and settlements	0.0			0.0			(5.8		)	(12.2		)	0.0			0.0
Foreign currency effect	0.0			0.0			4.9			(15.1		)	0.0			0.0
Other	0.0			0.0			0.5			(15.4		)	0.0			0.0

Projected benefit obligation as of December 31	$	129.0		$	130.9		$	456.6		$	431.1		$	50.8		$	51.8

Fair Value of Plan Assets
Fair value of plan assets as of January 1	$	95.3		$	91.1		$	312.1		$	300.2		$	0.0		$	0.0
Actual return on plan assets	9.7			11.2			9.0			28.3			0.0			0.0
Employer contributions	14.1			9.6			65.0			28.1			4.8			5.5
Plan participant contributions	0.0			0.0			0.7			0.7			1.4			1.5
Benefits paid	(11.9		)	(16.6		)	(21.2		)	(21.1		)	(6.2		)	(7.0		)
Settlements	0.0			0.0			(5.8		)	(12.2		)	0.0			0.0
Foreign currency effect	0.0			0.0			3.8			(7.4		)	0.0			0.0
Other	0.0			0.0			0.0			(4.5		)	0.0			0.0
																0.0
Fair value of plan assets as of December 31	$	107.2		$	95.3		$	363.6		$	312.1		$	0.0		$	0.0

Funded status of the plans at December 31	$	(21.8	)	$	(35.6	)	$	(93.0	)	$	(119.0	)	$	(50.8	)	$	(51.8	)



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
December 31,	2011			2010			2011			2010			2011			2010
Amounts recognized in Consolidated Balance Sheets
Non-current asset	$	0.0		$	0.0		$	19.6		$	8.1		$	0.0		$	0.0
Current liability	0.0			0.0			(8.1		)	(9.3		)	(4.9		)	(4.5		)
Non-current liability	(21.8		)	(35.6		)	(104.5		)	(117.8		)	(45.9		)	(47.3		)

Net liability recognized	$	(21.8	)	$	(35.6	)	$	(93.0	)	$	(119.0	)	$	(50.8	)	$	(51.8	)

Accumulated benefit obligation	$	129.0		$	130.9		$	432.8		$	408.8

Amounts recognized in Accumulated Other Comprehensive Loss, net
Net actuarial loss	$	49.9		$	55.5		$	55.2		$	32.3		$	6.7		$	5.7
Prior service cost (credit)	0.0			0.1			1.9			1.6			(0.3		)	(0.4		)
Transition obligation	0.0			0.0			0.0			0.0			0.1			0.3

Total amount recognized	$	49.9		$	55.6		$	57.1		$	33.9		$	6.5		$	5.6



	Domestic Pension Plan				Foreign Pension Plans
December 31,	2011		2010		2011		2010
Pension plans with underfunded or unfunded accumulated benefit obligation
Aggregate projected benefit obligation	$	129.0	$	130.9	$	132.6	$	411.5
Aggregate accumulated benefit obligation	129.0		130.9		127.0		394.4
Aggregate fair value of plan assets	107.2		95.3		20.2		285.7

Schedule of Net Benefit Costs



	Domestic Pension Plan									Foreign Pension Plans									Domestic Postretirement Benefit Plan
Years ended December 31,	2011			2010			2009			2011			2010			2009			2011			2010			2009
Service cost	$	0.0		$	0.0		$	0.0		$	9.6		$	9.7		$	11.7		$	0.2		$	0.3		$	0.4
Interest cost	6.8			7.3			8.0			23.3			22.8			23.2			2.7			2.8			3.1
Expected return on plan assets	(7.5		)	(7.0		)	(7.4		)	(19.0		)	(17.0		)	(13.7		)	0.0			0.0			0.0
Curtailment and settlement losses	0.0			0.0			0.0			0.0			1.4			2.5			0.0			0.0			0.0
Amortization of:
Transition obligation	0.0			0.0			0.0			0.0			0.0			0.0			0.1			0.2			0.1
Prior service cost (credit)	0.0			0.0			0.1			0.2			0.2			0.2			(0.1		)	(0.1		)	(0.1		)
Unrecognized actuarial losses	6.6			8.6			9.8			0.7			1.9			2.3			0.0			0.0			0.0
Net periodic cost	$	5.9		$	8.9		$	10.5		$	14.8		$	19.0		$	26.2		$	2.9		$	3.2		$	3.5

Assumptions



	Domestic Pension Plan						Foreign Pension Plans						Domestic Postretirement Benefit Plan
Years ended December 31,	2011		2010		2009		2011		2010		2009		2011		2010		2009
Net periodic cost
Discount rate	5.50	%	5.51	%	6.01	%	5.45	%	5.50	%	5.54	%	5.50	%	5.50	%	6.00	%
Rate of compensation increase	N/A		N/A		N/A		4.37	%	4.43	%	4.41	%	N/A		N/A		N/A
Expected return on plan assets	7.50	%	7.49	%	8.16	%	5.88	%	5.84	%	5.05	%	N/A		N/A		N/A
Benefit obligation
Discount rate	5.00	%	5.50	%	5.53	%	5.00	%	5.45	%	5.51	%	5.00	%	5.50	%	5.50	%
Rate of compensation increase	N/A		N/A		N/A		3.66	%	4.34	%	4.43	%	N/A		N/A		N/A
Health care cost trend rate assumed for next year
Initial rate (weighted-average)													8.00	%	8.50	%	8.00	%
Year ultimate rate is reached													2016		2017		2015
Ultimate rate													5.50	%	5.50	%	5.50	%

Fair Value of Pension Plan Assets



	December 31, 2011								December 31, 2010
Asset Class	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Investment funds	$	18.4	$	307.1	$	43.8	$	369.3	$	19.5	$	289.1	$	53.9	$	362.5
Insurance contracts	0.0		24.8		0.0		24.8		0.0		25.1		0.0		25.1
Limited partnerships	0.0		0.0		41.1		41.1		0.0		0.0		3.2		3.2
Other	31.1		4.4		0.1		35.6		13.3		3.2		0.1		16.6
Total	$	49.5	$	336.3	$	85.0	$	470.8	$	32.8	$	317.4	$	57.2	$	407.4

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets

The following table presents additional information about our domestic and foreign pension plans' assets for which we utilize Level 3 inputs to determine fair value.



	Year ended December 31, 2011											Year ended December 31, 2010
	Investment Funds			Limited Partnership			Other		Total			Investment Funds			Limited Partnership			Other			Total
Balance at beginning of period	$	53.9		$	3.2		$	0.1	$	57.2		$	38.6		$	4.7		$	0.5		$	43.8
Actual return on assets:
Assets sold during the year	0.1			0.0			0.0		0.1			(0.4		)	(0.2		)	0.0			(0.6		)
Assets still held at year end	(0.6		)	(1.2		)	0.0		(1.8		)	6.5			0.2			0.0			6.7
Net purchases, sales and settlements	(9.6		)	39.1			0.0		29.5			3.0			(1.5		)	0.0			1.5
Transfers in/out of Level 3	0.0			0.0			0.0		0.0			6.2			0.0			(0.4		)	5.8
Balance at end of period	$	43.8		$	41.1		$	0.1	$	85.0		$	53.9		$	3.2		$	0.1		$	57.2

Schedule of Allocation of Plan Assets

As of December 31, 2011, the weighted-average target and actual asset allocations relating to our domestic and foreign pension plans' assets are listed below.



			December 31,
Asset Class	2012 Target Allocation		2011		2010
Equity securities	25	%	20	%	26	%
Fixed income securities	47	%	47	%	47	%
Other	28	%	33	%	27	%
Total	100	%	100	%	100	%

Schedule of Estimated Future Benefit Payments

The following estimated future benefit payments, which reflect future service, as appropriate, are expected to be paid in the years indicated below.



Years	Domestic Pension Plan		Foreign Pension Plans		Domestic Postretirement Benefit Plan
2012	$	11.0	$	21.8	$	5.4
2013	10.9		24.2		5.4
2014	10.6		24.8		5.3
2015	9.9		25.8		5.1
2016	10.3		26.7		5.0
2017 - 2021	44.4		153.7		21.7

Schedule of Federal Subsidies

The following federal subsidies are expected to be received in the years indicated below.



Years	Domestic Postretirement Benefit Plan
2012	$	0.5
2013	0.6
2014	0.6
2015	0.5
2016	0.5
2017 - 2021	1.4

Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.

Schedule of Segment Reporting Information, by Segment

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5, 6, 7

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 4, 7, 16, 20, 21

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 55

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=6930749&loc=d3e4179-114921

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2410-114920

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2439-114920

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2417-114920

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Segment Information (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Summarized financial information concerning our reportable segments is shown in the following table.



	Years ended December 31,
	2011			2010			2009
Revenue:
IAN	$	5,891.8		$	5,468.4		$	5,061.7
CMG	1,122.8			1,038.9			945.7
Total	$	7,014.6		$	6,507.3		$	6,007.4

Segment operating income:
IAN	$	728.8		$	617.6		$	423.4
CMG	101.4			80.3			73.1
Corporate and other	(142.0		)	(145.3		)	(150.6		)
Total	688.2			552.6			345.9

Restructuring and other reorganization-related charges, net	(1.0		)	(3.9		)	(4.6		)
Interest expense	(136.8		)	(139.7		)	(155.6		)
Interest income	37.8			28.7			35.0
Other income, net	150.2			12.9			11.7
Income before income taxes	$	738.4		$	450.6		$	232.4

Depreciation and amortization of fixed assets and intangible assets:
IAN	$	125.7		$	116.7		$	131.6
CMG	12.8			14.2			15.0
Corporate and other	12.4			17.5			23.3
Total	$	150.9		$	148.4		$	169.9

Capital expenditures:
IAN	$	94.1		$	83.5		$	50.0
CMG	16.9			6.9			5.7
Corporate and other	29.3			5.9			11.4
Total	$	140.3		$	96.3		$	67.1

	December 31,
	2011			2010
Total assets:
IAN	$	10,589.2		$	10,481.7
CMG	1,019.9			930.5
Corporate and other	1,267.5			1,658.6
Total	$	12,876.6		$	13,070.8

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

Revenue and long-lived assets, excluding intangible assets, are presented by major geographic area in the following table.



	Revenue						Long-Lived Assets
	Years ended December 31,						December 31,
	2011		2010		2009		2011		2010
Domestic	$	3,887.7	$	3,709.9	$	3,372.3	$	477.2	$	480.6
International:
United Kingdom	539.4		469.6		458.5		65.2		47.4
Continental Europe	908.9		863.2		922.2		72.1		85.2
Asia Pacific	741.7		639.8		575.4		78.4		82.1
Latin America	444.4		363.3		287.1		69.1		57.8
Other	492.5		461.5		391.9		34.5		38.4
Total international	3,126.9		2,797.4		2,635.1		319.3		310.9
Total consolidated	$	7,014.6	$	6,507.3	$	6,007.4	$	796.5	$	791.5

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

+ References+ Details

Commitments and Contingencies Disclosure [Abstract]

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References+ Details

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Net Rent Expense

Net rent expense is listed in the table below.



	Years ended December 31,
	2011			2010			2009
Gross rent expense	$	369.5		$	365.2		$	391.5
Third-party sublease rental income	(19.4		)	(20.0		)	(26.8		)
Net rent expense	$	350.1		$	345.2		$	364.7

Schedule of Future Minimum Lease Commitments



Period	Rent Obligations		Sublease Rental Income			Net Rent
2012	$	313.1	$	(26.9	)	$	286.2
2013	277.1		(26.0		)	251.1
2014	224.0		(13.9		)	210.1
2015	186.5		(6.1		)	180.4
2016	147.1		(1.4		)	145.7
Thereafter	487.9		(0.8		)	487.1
Total	$	1,635.7	$	(75.1	)	$	1,560.6

Schedule of Contingent Acquisition Obligations

The following table details the estimated future contingent acquisition obligations payable in cash as of December 31, 2011.



	2012		2013		2014		2015		2016		Thereafter		Total
Deferred acquisition payments	$	40.7	$	13.6	$	14.5	$	5.9	$	29.3	$	16.6	$	120.6
Redeemable noncontrolling interests and call options with affiliates ¹	15.6		53.4		22.8		26.5		4.0		6.7		129.0
Total contingent acquisition payments	56.3		67.0		37.3		32.4		33.3		23.3		249.6
Less: cash compensation expense included above	3.6		0.3		0.2		0.2		0.0		0.0		4.3
Total	$	52.7	$	66.7	$	37.1	$	32.2	$	33.3	$	23.3	$	245.3

Results by Quarter (Unaudited) Results by Quarter (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Results by Quarter (Unaudited)



	Three Months Ended March 31,						Three Months Ended June 30,						Three Months Ended September 30,						Three Months Ended December 31,
	2011			2010			2011			2010			2011			2010			2011			2010
Revenue	$	1,474.8		$	1,337.0		$	1,740.7		$	1,611.7		$	1,726.5		$	1,553.4		$	2,072.6		$	2,005.2
Salaries and related expenses	1,080.1			979.3			1,095.7			991.0			1,088.0			1,007.1			1,138.3			1,139.6
Office and general expenses	439.2			416.8			470.8			442.9			465.5			444.7			548.8			533.3
Restructuring and other reorganization-related charges (reversals), net	0.8			0.3			0.2			0.6			(0.2		)	1.4			0.2			1.6
Operating (loss) income	(45.3		)	(59.4		)	174.0			177.2			173.2			100.2			385.3			330.7
Other (expense) income, net ¹	(6.1		)	0.5			5.3			(2.1		)	137.1			(3.1		)	13.9			17.6
Total (expenses) and other income¹	(29.7		)	(25.6		)	(18.1		)	(31.0		)	113.9			(31.0		)	(14.9		)	(10.5		)
(Benefit of) provision for income taxes	(21.5		)	(15.3		)	47.6			63.3			70.4			24.4			93.7			98.9
Net (loss) income ¹	(53.2		)	(70.3		)	108.9			83.1			217.5			45.6			278.3			222.8
Net (loss) income available to IPG common stockholders ¹	$	(48.1	)	$	(71.5	)	$	101.7		$	105.3		$	208.1		$	42.4		$	259.0		$	195.0
(Loss) earnings per share available to IPG common stockholders:
Basic	$	(0.10	)	$	(0.15	)	$	0.21		$	0.22		$	0.45		$	0.09		$	0.58		$	0.41
Diluted	$	(0.10	)	$	(0.15	)	$	0.19		$	0.15		$	0.40		$	0.08		$	0.50		$	0.36

Dividends declared per common stock	$	0.06		$	0.00		$	0.06		$	0.00		$	0.06		$	0.00		$	0.06		$	0.00


¹	The three months ended September 30, 2011, includes a pre-tax gain of $132.2 related to the sale of approximately half of our holdings in Facebook, Inc.

Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accounting Policies [Abstract]
Accounts payable adjustment	$ 2,613.6	$ 2,332.2
Accrued liabilities adjustment	(2,613.6)	(2,332.2)
Revenue reclassification adjustment		(24.6)	(20.2)
Office and general expense reclassification adjustment		(24.6)	(20.2)
Furniture, equipment and computer software costs, useful life minimum	3
Furniture, equipment and computer software costs, useful life maximum	7
Buildings, useful life minimum	10
Buildings, useful life maximum	35
Leasehold improvements, useful life	the shorter of the useful life or the remaining lease term
Number of Reporting Units for Purposes of Annual Goodwill Impairment Test	11
Finite-Lived Intangible Assets, Useful Life, Minimum	7
Finite-Lived Intangible Assets, Useful Life, Maximum	15
Foreign currency transaction pre-tax loss	$ 0.9	$ 0.7	$ 4.7

Earnings Per Share Basic and Diluted (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified

3 Months Ended

12 Months Ended

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2010

Sep. 30, 2010

Jun. 30, 2010

Mar. 31, 2010

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Net income available to IPG common stockholders - basic

$ 259.0

$ 208.1

^[1]

$ 101.7

$ (48.1)

$ 195.0

$ 42.4

$ 105.3

$ (71.5)

$ 520.7

$ 271.2

$ 93.6

Net income available to IPG common stockholders - diluted

537.8

254.9

95.0

Weighted-average number of common shares outstanding - basic

465.5

473.6

468.2

Weighted-average number of common shares outstanding - diluted

540.6

542.1

508.1

Earnings per share available to IPG common stockholders - basic

$ 0.58

$ 0.45

$ 0.21

$ (0.10)

$ 0.41

$ 0.09

$ 0.22

$ (0.15)

$ 1.12

$ 0.57

$ 0.20

Earnings per share available to IPG common stockholders - diluted

$ 0.50

$ 0.40

$ 0.19

$ (0.10)

$ 0.36

$ 0.08

$ 0.15

$ (0.15)

$ 0.99

$ 0.47

$ 0.19

Adjustments: Effect of dilutive securities

Preferred stock dividends

11.6

Benefit from preferred stock repurchased

(21.7)

^[2]

Restricted stock, stock options and other equity awards

9.1

11.3

7.7

Preferred stock outstanding

16.5

Preferred stock repurchased

8.9

Dividends declared and associated with preferred stock repurchased

4.0

4.25% Notes

Adjustments: Effect of dilutive securities

Interest on convertible debt

1.4

Convertible debt securities

33.0

32.2

Adjustments: Effect of dilutive securities

4.25%

4.75% Notes

Interest on convertible debt

$ 4.1

$ 4.0

$ 0

Convertible debt securities

16.5

16.1

4.75%

4.50% Notes

4.50%

Debt Maturity Date

Mar. 15, 2023

[1]

The three months ended September 30, 2011, includes a pre-tax gain of $132.2 related to the sale of approximately half of our holdings in Facebook, Inc.

[2]

Antidilutive Shares (Details)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount

16.2

55.1

Antidilutive Stock Options, Exercise Price Greater Than Average Market Price

8.9

^[1]

15.6

^[1]

21.2

^[1]

Antidilutive Warrants Excluded Exercise Price Greater Than Average Market Price

^[2]

67.9

^[2]

4.75% Notes

Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount

16.1

4.50% Notes

Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount

0.6

Preferred stock outstanding

Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount

16.2

38.4

[1]	These options are outstanding at the end of the respective periods. In any period in which the exercise price is less than the average market price, these options have the potential to be dilutive, and application of the treasury stock method would reduce this amount.
[2]	The potential dilutive impact of the warrants is based upon the difference between the market price of one share of our common stock and the stated exercise prices of the warrants, adjusted to reflect the period during which the warrants were outstanding. The warrants expired in June 2009.

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 13, 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 171

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 40

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Antidilution

-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Long-term Debt (Details) (USD $)
In Millions, unless otherwise specified

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Aug. 31, 2011

7.25% Senior Unsecured Notes due 2011

Dec. 31, 2011

7.25% Senior Unsecured Notes due 2011

Dec. 31, 2010

7.25% Senior Unsecured Notes due 2011

Dec. 31, 2011

6.25% Senior Unsecured Notes due 2014

Dec. 31, 2010

6.25% Senior Unsecured Notes due 2014

Dec. 31, 2011

10.00% Senior Unsecured Notes due 2017

Dec. 31, 2010

10.00% Senior Unsecured Notes due 2017

Dec. 31, 2011

4.75% Convertible Senior Notes due 2023

Dec. 31, 2010

4.75% Convertible Senior Notes due 2023

Dec. 31, 2011

4.25% Convertible Senior Notes due 2023

Dec. 31, 2010

4.25% Convertible Senior Notes due 2023

Dec. 31, 2011

Other notes payable and capitalized leases

Dec. 31, 2010

Other notes payable and capitalized leases

Nov. 30, 2010

Floating Rate Senior Unsecured Notes due 2010

Apr. 30, 2010

Floating Rate Senior Unsecured Notes due 2010

Dec. 31, 2010

Floating Rate Senior Unsecured Notes due 2010

Debt Instrument

Effective Interest Rate

7.25%

6.29%

10.38%

3.50%

0.58%

Long-term debt, excluding current portion

7.25%

6.25%

10.00%

4.75%

4.25%

Debt Maturity Date

Aug. 15, 2011

Nov. 15, 2014

Jul. 15, 2017

Mar. 15, 2023

Nov. 15, 2010

Book Value

$ 0

$ 36.3

$ 354.3

$ 353.3

$ 590.6

$ 589.4

$ 202.7

$ 205.0

$ 403.0

$ 417.4

$ 65.1

$ 20.8

Fair Value

^[1]

37.0

^[1]

374.5

^[1]

378.0

^[1]

690.0

^[1]

705.0

^[1]

220.5

^[1]

235.0

^[1]

405.5

^[1]

444.4

^[1]

Total long-term debt

1,615.7

1,622.2

Less: current portion

404.8

^[2]

38.9

^[2]

1,210.9

1,583.3

Unamortized Discount

0.3

9.4

Unamortized Premium

2.7

3.0

Unamortized debt issuance costs

25.5

28.3

Aggregate principal amount

36.3

192.3

21.4

Repayment of long term debt, amount paid, including accrued and unpaid interest

37.6

193.5

21.5

Cash debt pooling arrangements, amount netted

$ 1,106.6

$ 916.1

[1]

Fair values are derived from trading quotes by institutions making a market in the securities and estimations of value by those institutions using proprietary models.

[2]

Debt and Credit Arrangements Annual Maturities (Details) (USD $)
In Millions, unless otherwise specified

Dec. 31, 2011

Dec. 31, 2010

Maturities of Long-term Debt [Abstract]

2012

$ 1.8

^[1]

2013

16.0

^[2]

354.4

0.1

0.1

1,243.3

$ 1,615.7

$ 1,622.2

[1]	Holders of our 4.25% Notes may require us to repurchase their notes for cash at par in March 2012. The 4.25% Notes are redeemable in whole or in part at our option beginning March 15, 2012.
[2]	Holders of our 4.75% Convertible Senior Notes due 2023 (the “4.75% Notes”) may require us to repurchase their notes for cash, stock or a combination, at our election, at par in March 2013.

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References+ Details

Debt and Credit Arrangements Convertible Securities Conversion Rates (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Debt Instrument
Convertible Notes, terms of conversion feature	convertible at any time if the average price of our common stock for 20 trading days immediately preceding the conversion date is greater than or equal to a specified percentage of the conversion price; this percentage was equal to 116.0% in 2011 and declines 0.5% each year until it reaches 110% at maturity
Convertible Notes, earliest convertible date	February 15, 2023
Convertible Notes, latest convertible date	March 15, 2023
Convertible Notes, conversion price	$ 12.13	$ 12.42	$ 12.42
Convertible Notes, conversion rate per note	82.4612	80.5153	80.5153

The ratio applied to the debt for purposes of determining the number of shares of the equity security into which the debt will be converted.

+ References+ Details

The earliest date on which the debt instrument can be converted into equity, which may be presented in a variety of ways (for example, (year only, month and year, day, month and year, quarter).

+ References+ Details

The latest date on which the debt instrument can be converted into equity, which may be presented in a variety of ways (for example, (year only, month and year, day, month and year, quarter).

+ References+ Details

Description of the conversion terms of a debt instrument which may include the conversion ratio (including all potential conversion ratios if contingently adjustable), type of debt or equity security into which the debt is convertible, the dollars of debt or the number of shares into which the instrument is convertible (or potentially convertible into), the conversion period, any contingencies associated with the conversion terms, and the existence and amount of a beneficial conversion feature.

Changes in redeemable noncontrolling interests

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS129-1

-Paragraph 3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 00-27

-Paragraph 56

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(5))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Convertible Securities (Details)	12 Months Ended
Convertible Securities (Details)	Dec. 31, 2011
4.25% Notes
Debt Instrument
Repurchase of convertible notes for cash, date	Mar. 15, 2012
Repurchase of Convertible Notes for cash, common stock, or combination, earliest date	Mar. 15, 2015
Repurchase of Convertible Notes for cash, common stock, or combination, latest date	Mar. 15, 2018
Repurchase of Convertible Notes for cash, common stock, or combination due to change of control events, date	Mar. 15, 2012
Redemption of Convertible Notes for cash, date	Mar. 15, 2012
4.75% Notes
Debt Instrument
Repurchase of Convertible Notes for cash, common stock, or combination, earliest date	Mar. 15, 2013
Repurchase of Convertible Notes for cash, common stock, or combination, latest date	Mar. 15, 2018
Repurchase of Convertible Notes for cash, common stock, or combination due to change of control events, date	Mar. 15, 2013
Redemption of Convertible Notes for cash, date	Mar. 15, 2013

Debt and Credit Arrangements Capped Call (Details) (4.75% Notes, USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
4.75% Notes
Debt Instrument
Capped call, strike price	$ 12.13	$ 12.42
Capped call, cap price	$ 17.83	$ 18.26
Capped call, number of shares that may be purchased	16.5
Capped call, expiration date	Apr. 02, 2013
Capped call, cost of options		$ 22.8

Credit Facility (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	May 31, 2011	Dec. 31, 2011 Committed credit agreement	Dec. 31, 2010 Committed credit agreement	Dec. 31, 2011 Uncommitted credit agreements	Dec. 31, 2010 Uncommitted credit agreements
Line of Credit Facility [Line Items]
Credit Facilities, total facility		$ 1,000.0	$ 1,000.0	$ 650.0	$ 458.3	$ 455.2
Credit Facilities, amount outstanding			0	0	153.5	114.8
Credit Facilities, letters of credit			16.2	16.2	2.6	0.1
Credit Facilities, total available			983.8	633.8	302.2	340.3
Credit Facilities, weighted-average interest rate					5.00%	5.00%
Credit Agreement, amendment date	May 31, 2011
Credit Agreement, original agreement date	July 18, 2008
Credit Agreement, expiration date	May 31, 2016
Credit Agreement, borrowing capacity prior to amendment		650.0
Credit Agreement, limit on letters of credit	$ 200.0
Credit Agreement, margin for base rate advances	0.40%
Credit Agreement, margin for Eurocurrency rate advances	1.40%
Credit Agreement, annual rate for fronting fees accrued on letters of credit	0.25%
Credit Agreement, facility fee annual rate	0.35%

Convertible Preferred Stock Convertible Preferred Stock (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Features of Convertible Preferred Stock [Abstract]
Liquidation preference per share	$ 1,000.00
Shares Outstanding (actual number)	200,000	200,000	525,000
Conversion rate per share	74.4500	73.1904	73.1904
Conversion price	$ 13.43	$ 13.66	$ 13.66
Preferred shares purchased (actual number)		303,526
Payments for repurchase of preferred stock including transaction costs		$ 267.6
Sale of preferred stock price per share		$ 869.86
Payment of unpaid dividends on preferred stock purchased		1.9
Preferred stock purchased carrying value		293.3
Benefit from preferred stock repurchased	0	25.7	0
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs		10.2
Preferred stock declared, annual dividends per share	$ 52.50
Preferred stock dividends	$ (11.6)	$ (15.6)	$ (27.6)

Redeemable Noncontrolling Interests (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Balance at beginning of period

$ 291.2

$ 277.8

$ 288.4

(7.7)

1.5

2.5

Changes in redemption value of redeemable noncontrolling interests:

Additions

17.9

31.9

0.5

Redemptions and reclassifications

(70.7)

(30.1)

(5.3)

Redemption value adjustments

12.7

^[1]

10.1

^[1]

(8.3)

^[1]

Balance at end of period

$ 243.4

$ 291.2

$ 277.8

[1]

Redeemable noncontrolling interests are reported at their estimated redemption value in each reporting period, but not less than their initial fair value. Any adjustment to the redemption value impacts retained earnings or additional paid-in capital, except adjustments as a result of currency translation.

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

+ References+ Details

The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

Total cash paid for acquisitions

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number D-98

-Paragraph 43

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number D-98

-Paragraph 43

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 27

-Appendix A

-Subparagraph c

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Subparagraph (12)(c)

-Section S99

-Paragraph 3A

-URI http://asc.fasb.org/extlink&oid=6802392&loc=SL6540498-122764

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Subparagraph 14

-Paragraph 3A

-Section S99

-URI http://asc.fasb.org/extlink&oid=6802392&loc=SL6540498-122764

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Subparagraph 15

-Paragraph 3A

-Section S99

-URI http://asc.fasb.org/extlink&oid=6802392&loc=SL6540498-122764

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Subparagraph (16)(c)

-Paragraph 3A

-Section S99

-URI http://asc.fasb.org/extlink&oid=6802392&loc=SL6540498-122764

+ Details

Acquisitions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Business Acquisitions
Number of completed acquisitions	22	5	2
Goodwill and intangible assets recorded for acquisitions	$ 133.0	$ 63.0
IAN
Business Acquisitions
Number of completed acquisitions	18	4	2
CMG
Business Acquisitions
Number of completed acquisitions	4	1	0

Cash Paid for Acquisitions (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Cost of investment

$ 134.6

^[1]

$ 91.4

^[1]

$ 78.3

^[1]

Less: net cash acquired

(18.5)

(5.3)

(0.1)

Operating expense

0.5

^[2]

3.0

^[2]

135.1

94.4

78.3

Acquisition-related payments

(71.5)

(29.5)

(5.9)

Acquisitions, including deferred payments, net of cash acquired

(63.1)

(61.9)

(72.4)

Cash paid for current year acquisitions

Cost of investment

48.0

47.1

3.8

Cash paid for prior year acquisitions

Cost of investment

$ 105.1

$ 49.6

$ 74.6

[1]

[2]

Represents cash payments made that were either in excess of the contractual value or contingent upon the future employment of the former owners of acquired companies.

Valuation and Qualifying Accounts - Allowance for Uncollectible Accounts Receivable (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Movement in Valuation Allowances and Reserves [Roll Forward]

Balance at beginning of period

$ 63.1

$ 66.0

$ (63.9)

Charges to costs and expenses

10.4

10.7

19.3

Reversals to other accounts

(0.5)

^[1]

(0.4)

^[1]

(2.8)

^[1]

Deductions:

Dispositions

(0.5)

(0.2)

Uncollectible accounts written off

(16.3)

(11.8)

(16.5)

Foreign currency translation adjustment

(1.3)

(0.9)

2.3

Balance at end of period

$ 55.4

$ 63.1

$ 66.0

[1]	Amounts relate to allowance for doubtful accounts of acquired and newly consolidated companies, miscellaneous other amounts and reclassifications.

Furniture, Equipment and Leasehold Improvements, net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Property, Plant and Equipment [Abstract]
Furniture and equipment	$ 881.5	$ 881.5
Leasehold improvements	593.0	605.4
Land and buildings	111.6	114.5
Furniture, equipment and leasehold improvements	1,586.1	1,601.4
Less: Accumulated depreciation	(1,126.3)	(1,147.1)
Total furniture, equipment and leasehold improvements, net	459.8	454.3
Depreciation and amortization expense	$ 130.7	$ 129.0	$ 150.6

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

+ References+ Details

Gross amount, at the balance sheet date, of long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details

Tangible assets that are held by an entity for use in the production or supply of goods and services, for rental to others, or for administrative purposes and that are expected to provide economic benefit for more than one year; net of accumulated depreciation. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details

Accrued Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Accrued Liabilities [Abstract]
Salaries, benefits and related expenses	$ 520.6	$ 470.0
Office and related expenses	57.9	62.0
Acquisition obligations	43.7	63.5
Interest	40.3	41.5
Professional fees	25.3	24.6
Other	139.3	118.9
Total accrued liabilities	$ 827.1	$ 780.5

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 3

-Section A

-Paragraph 7

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Current Liabilities

-URI http://asc.fasb.org/extlink&oid=6509677

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6935-107765

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6911-107765

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 3

-Section A

-Paragraph 8

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

Share Repurchase Program (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Repurchase of common stock	$ 400.8
2011 Share Repurchase Program
Share repurchase program, initial authorized amount	300.0
Share repurchase program, increased authorized amount	450.0
Repurchase of common stock - shares	41.7
Repurchase of common stock - average price per share	$ 9.62
Repurchase of common stock	$ 400.8

Other Nonoperating Income (Expense) [Abstract]

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References+ Details

Other Income, Net (Details) (USD $)
In Millions, unless otherwise specified

3 Months Ended

12 Months Ended

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2010

Sep. 30, 2010

Jun. 30, 2010

Mar. 31, 2010

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Gains on sales of businesses and investments

$ 125.9

$ 4.3

$ 10.2

Net loss on early extinguishment of debt

(0.1)

(25.1)

Vendor discounts and credit adjustments

19.4

12.7

24.4

Other income (expense), net

4.9

(4.0)

2.2

Total other income (expense), net

13.9

137.1

^[1]

5.3

(6.1)

17.6

(3.1)

(2.1)

0.5

150.2

12.9

11.7

Net proceeds from sale of portion of Facebook

133.5

Gain recorded on sale of portion of Facebook

$ 132.2

$ 0

[1]	The three months ended September 30, 2011, includes a pre-tax gain of $132.2 related to the sale of approximately half of our holdings in Facebook, Inc.

Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment.

+ References+ Details

The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

Supplemental Cash Flow Information [Abstract]

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 31

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

+ Details

Supplemental Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Cash paid for interest

$ 138.9

$ 139.8

$ 138.6

Cash paid for income taxes, net of refunds

102.0

^[1]

87.3

^[1]

57.3

^[1]

Proceeds from Income Tax Refunds

$ 25.4

$ 28.7

$ 55.0

[1]	Refunds of $25.4, $28.7 and $55.0 were received for the years ended December 31, 2011, 2010 and 2009, respectively.

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

+ References+ Details

Goodwill (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Goodwill

Current year acquisitions

$ 3,444.3

^[1]

$ 3,368.5

^[1]

$ 3,321.0

^[1]

96.9

^[1]

38.8

^[1]

Contingent and deferred payments for prior acquisitions

0.8

^[1]

35.1

^[1]

(21.9)

^[1],[2]

(26.4)

^[1],[2]

IAN

Goodwill

Current year acquisitions

2,952.9

^[1]

2,906.0

^[1]

2,844.7

^[1]

68.5

^[1]

37.5

^[1]

Contingent and deferred payments for prior acquisitions

0.8

^[1]

34.4

^[1]

(22.4)

^[1],[2]

(10.6)

^[1],[2]

CMG

Goodwill

Current year acquisitions

491.4

^[1]

462.5

^[1]

476.3

^[1]

28.4

^[1]

1.3

^[1]

Contingent and deferred payments for prior acquisitions

^[1]

0.7

^[1]

$ 0.5

^[1],[2]

$ (15.8)

^[1],[2]

[1]	For all periods presented we have not recorded a goodwill impairment charge.
[2]	Primarily includes foreign currency translation adjustments.

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph l

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

-Subparagraph d

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-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-Clause 1

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+ Details

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ Details

Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Future Amortization Expense 2012	$ 26.9
Future Amortization Expense 2013	26.8
Future Amortization Expense 2014	24.3
Future Amortization Expense 2015	16.4
Future Amortization Expense 2016	5.5
Finite-Lived Intangible Assets [Line Items]
Amortization Expense of Intangible Assets	20.2	19.4	19.3
Finite-Lived Intangible Assets, Useful Life, Minimum	7
Finite-Lived Intangible Assets, Useful Life, Maximum	15
Gross Amount	236.1	209.5
Accumulated Amortization	(101.8)	(86.4)
Net Amount	134.3	123.1
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	165.9	147.0
Accumulated Amortization	(81.7)	(69.0)
Net Amount	84.2	78.0
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	52.9	45.1
Accumulated Amortization	(12.3)	(9.7)
Net Amount	40.6	35.4
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	17.3	17.4
Accumulated Amortization	(7.8)	(7.7)
Net Amount	$ 9.5	$ 9.7

Components of Income Before Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Tax Disclosure [Abstract]
Income before income taxes, Domestic	$ 428.4	$ 216.2	$ 141.9
Income before income taxes, Foreign	310.0	234.4	90.5
Income before income taxes	$ 738.4	$ 450.6	$ 232.4

Provision for Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
U.S. federal income taxes (including foreign withholding taxes):
Current federal income taxes									$ 0.9	$ 13.7	$ (48.4)
Deferred federal income taxes									92.3	60.2	38.7
Total federal income taxes									93.2	73.9	(9.7)
State and local income taxes:
Current state and local income taxes									12.3	16.8	(6.1)
Deferred state and local income taxes									11.3	(0.1)	40.1
Total state and local income taxes									23.6	16.7	34.0
Foreign income taxes:
Current foreign income taxes									93.1	84.8	55.4
Deferred foreign income taxes									(19.7)	(4.1)	10.4
Total foreign income taxes									73.4	80.7	65.8
Total provision for income taxes	$ 93.7	$ 70.4	$ 47.6	$ (21.5)	$ 98.9	$ 24.4	$ 63.3	$ (15.3)	$ 190.2	$ 171.3	$ 90.1

Reconciliation of Effective Income Tax Rate (Details) (USD $)
In Millions, unless otherwise specified

3 Months Ended

12 Months Ended

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2010

Sep. 30, 2010

Jun. 30, 2010

Mar. 31, 2010

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

U.S. federal statutory income tax rate

35.00%

Income tax provision at U.S. federal statutory rate

$ 258.4

$ 157.7

$ 81.3

State and local income taxes, net of federal income tax benefit

15.3

10.8

22.1

Impact of foreign operations, including withholding taxes

(21.9)

4.7

26.9

Change in net valuation allowance

(32.9)

^[1]

(2.4)

^[1]

12.4

^[1]

Worthless securities deduction

(23.0)

(2.5)

(2.3)

(Decreases) increases in unrecognized tax benefits, net

(2.7)

8.9

(55.6)

Stock based compensation

0.2

16.4

Total provision for income taxes

(3.2)

(6.1)

(11.1)

$ 93.7

$ 70.4

$ 47.6

$ (21.5)

$ 98.9

$ 24.4

$ 63.3

$ (15.3)

$ 190.2

$ 171.3

$ 90.1

Effective income tax rate on operations

25.80%

38.00%

38.80%

[1]	Reflects changes in valuation allowance that impacted the effective income tax rate for each year presented.

Components of Deferred Tax Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Deferred Tax Assets, Net [Abstract]
Postretirement/post-employment benefits	$ 42.4	$ 34.5
Deferred compensation	205.2	192.3
Pension costs	14.2	23.9
Basis differences in fixed assets	81.8	83.0
Rent	38.6	15.2
Interest	54.8	51.1
Accruals and reserves	55.6	42.0
Allowance for doubtful accounts	8.1	10.6
Basis differences in intangible assets	(330.1)	(263.3)
Investments in equity securities	30.8	5.3
Tax loss/tax credit carry forwards	478.1	621.5
Restructuring and other reorganization-related costs	2.0	2.7
Other	92.2	55.6
Total Deferred Tax Assets, Net	773.7	874.4
Valuation allowance	(489.9)	(508.1)
Net Deferred Tax Assets	$ 283.8	$ 366.3

Change in Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Valuation Allowance [Abstract]
Balance at beginning of period	$ 508.1	$ 425.5	$ 379.5
(Reversed) charged to costs and expenses	(25.1)	92.3	24.7
Charged (reversed) to gross tax assets and other accounts	6.9	(9.7)	21.3
Balance at end of period	$ 489.9	$ 508.1	$ 425.5

The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income.

+ References+ Details

Unrecognized Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract]
Balance at beginning of period	$ 146.7	$ 160.5	$ 174.9
Increases as a result of tax positions taken during a prior year	5.3	4.6	7.8
Decreases as a result of tax positions taken during a prior year	(18.1)	(28.1)	(50.9)
Settlements with taxing authorities	(5.0)	(10.2)	0
Lapse of statutes of limitation	(0.2)	(0.6)	(5.0)
Increases as a result of tax positions taken during the current year	32.3	20.5	33.7
Balance at end of period	$ 161.0	$ 146.7	$ 160.5

Income Taxes Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Gain recorded on sale of portion of Facebook	$ 132.2	$ 132.2	$ 0	$ 0
One hundred percent valuation allowance		100.00%
Tax credit carryforward amount		32.9
Tax credit carryforward, expiration date		2013
Operating loss carryforwards		1,413.5
Undistributed foreign earnings		1,766.7	1,547.1
Unrecognized tax benefits		161.0	146.7	160.5	174.9
Unrecognized tax benefits that would impact effective tax rate		160.1
Income tax penalties and interest accrued		12.1	11.9
Income tax penalties and interest expense		(0.2)	5.0
Estimated unrecognized tax benefit decrease, lower bound		5.0
Estimated unrecognized tax benefit decrease, upper bound		15.0
Domestic country
Operating loss carryforwards		58.4
Operating loss carryforwards, expiration date		expire in the years 2029 through 2030
Domestic country \| Minimum [Member]
Income tax examination year		2007
Open tax years		2009
Domestic country \| Maximum [Member]
Income tax examination year		2008
State and local jurisdiction \| Minimum [Member]
Open tax years		1999
Foreign country
Operating loss carryforwards		1,355.1
Operating loss carryforwards, expiration date		expiration periods from 2012 through 2030
Operating loss carryforwards, no expiration		1,094.3
Operating loss carryforwards, subject to expiration		$ 260.8
Foreign country \| Minimum [Member]
Open tax years		2004

Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Accumulated Other Comprehensive Loss, net of tax [Abstract]
Foreign currency translation adjustment	$ (140.9)	$ (51.3)	$ (85.3)
Unrecognized losses, transition obligation and prior service cost	(85.0)	(67.7)	(90.9)
Net unrealized holding gains (losses) on securities	0.2	0	(0.4)
Accumulated other comprehensive loss, net of tax	$ (225.7)	$ (119.0)	$ (176.6)

Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period.

+ References+ Details

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 130

-Paragraph 26

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph i

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 158

-Paragraph 7

-Subparagraph c

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

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-Section 45

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-Topic 220

-SubTopic 10

-Section 45

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

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-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920

+ Details

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

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-Number 133

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-Number 52

-Paragraph 12, 13

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-Name Statement of Financial Accounting Standard (FAS)

-Number 52

-Paragraph 31

-Subparagraph a

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-Topic 830

-SubTopic 30

-Section 45

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-Topic 830

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-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

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-Name Accounting Standards Codification

-Topic 220

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-Paragraph 14

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-Topic 220

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+ Details

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ Details

Plan Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jun. 30, 2009	Mar. 31, 2009	Dec. 31, 2009 Stock options	Dec. 31, 2009 Other Stock-based Awards
Incentive Compensation Plan Initiation Year		May 01, 2009
Number of shares initially available for grant				8.1	26.5
Performance condition of awards	range from 0% to 200% of the target amount
Award vesting period, years	3
Maximum award value per employee	$ 6.0
Stock option vesting period in years, minimum	2
Stock option vesting period in years, maximum	4
Stock option expiration period in years	10
Restricted Cash Plan Initiation Year			Mar. 01, 2009

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References+ Details

Incentive Compensation Expense (Details) (USD $)
In Millions, unless otherwise specified

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

$ 62.4

$ 66.8

$ 62.3

Tax benefit

22.1

21.5

Stock options

6.7

7.4

10.2

Stock-settled awards

21.9

32.7

34.2

Cash-settled awards

5.7

10.9

9.3

Performance-based awards

23.3

11.0

6.4

Employee stock purchase plan

0.7

0.5

0.7

Other

4.1

^[1]

4.3

^[1]

1.5

^[1]

Time based cash awards

Incentive compensation expense, Non share-based

16.6

12.8

4.5

Performance based cash awards

Incentive compensation expense, Non share-based

$ 22.0

$ 11.4

$ 3.9

[1]	Represents charges recorded for severance expense related to stock-based compensation awards.

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References+ Details

Stock Option Activity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options outstanding as of January 1, 2011	22.2
Granted	0.8
Exercised	(1.3)	(0.5)	0
Cancelled/expired	(3.0)
Forfeited	(0.6)
Stock options outstanding as of December 31, 2011	18.1	22.2
Stock options outstanding as of Jan 1, 2011, Weighted-average exercise price	$ 14.43
Granted, Weighted-average exercise price	$ 12.48
Exercised, Weighted-average exercise price	$ 9.61
Cancelled/expired, Weighted-average exercise price	$ 31.19
Forfeited, Weighted-average exercise price	$ 5.73
Stock options outstanding as of Dec 31, 2011, Weighted-average exercise price	$ 12.10	$ 14.43
Stock options outstanding, Weighted-average remaining contractual term	4.4
Stock options outstanding, Aggregate intrinsic value	$ 20.7
Stock options vested and expected to vest, Outstanding	17.2
Stock options vested and expected to vest, Weighted-average exercise price	$ 12.37
Stock options vested and expected to vest, Weighted-average remaining contractual term	4.3
Stock options vested and expected to vest, Aggregate intrinsic value	17.8
Stock options exercisable, Number	13.1
Stock options exercisable, Weighted-average exercise price	$ 14.16
Stock options exercisable, Weighted-average remaining contractual term	3.2
Stock options exercisable, Aggregate intrinsic value	3.3
Non-vested as of January 1, 2011	6.5
Granted	0.8
Vested	(1.7)
Forfeited	(0.6)
Non-vested as of December 31, 2011	5.0	6.5
Non-vested as of January 1, 2011, Weighted-average grant date fair value	$ 3.38
Granted, Weighted-average grant date fair value	$ 4.57	$ 3.88	$ 2.69
Vested, Weighted-average grant date fair value	$ 4.27
Forfeited, Weighted-average grant date fair value	$ 3.11
Non-vested as of December 31, 2011, Weighted-average grant date fair value	$ 3.31	$ 3.38
Non-vested options outstanding, Weighted-average remaining contractual term	7.5
Non-vested options outstanding, Aggregate intrinsic value	17.5
Intrinsic value of stock options exercised	3.2	0.6	0
Cash received from stock options exercised	$ 13.3	$ 4.8	$ 0

Stock Option Valuation Assumptions (Details)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Expected volatility

39.90%

^[1]

42.20%

^[1]

68.30%

^[1]

Expected term (years)

6.7

^[2]

6.5

^[2]

6.8

^[2]

Risk free interest rate

2.80%

^[3]

3.00%

^[3]

2.50%

^[3]

Expected dividend yield

1.90%

^[4]

0.00%

^[4]

0.00%

^[4]

[1]	The expected volatility used to estimate the fair value of stock options awarded is based on a blend of: (i) historical volatility of our common stock for periods equal to the expected term of our stock options and (ii) implied volatility of tradable forward put and call options to purchase and sell shares of our common stock.
[2]	The estimate of our expected term is based on the average of (i) an assumption that all outstanding options are exercised upon achieving their full vesting date and (ii) an assumption that all outstanding options will be exercised at the midpoint between the current date (i.e., the date awards have ratably vested through) and their full contractual term. In determining the estimate, we considered several factors, including the historical option exercise behavior of our employees and the terms and vesting periods of the options.
[3]	The risk free rate is determined using the implied yield currently available for zero-coupon U.S. government issuers with a remaining term equal to the expected term of the options.
[4]	The expected dividend yield is calculated based on an annualized dividend of $0.24 per share. No dividend yield was assumed in 2010 and 2009 because we did not pay cash dividends on our common stock during those years.

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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Share-based Compensation Awards (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Stock-settled awards
Stock-based Payment Award
Awards granted	0.8	3.7	7.8
Weighted-average grant-date fair value (per award)	$ 11.94	$ 8.47	$ 4.21
Total fair value of vested awards distributed	$ 63.1	$ 36.4	$ 23.8
Accrued dividends on non-vested stock-settled awards	2.5
Dividends paid for stock-settled awards	0.3
Cash-settled awards
Stock-based Payment Award
Awards granted	0	0.6	1.4
Weighted-average grant-date fair value (per award)	$ 8.96	$ 8.50	$ 4.43
Total fair value of vested awards distributed	10.4	4.8	7.5
Performance-based awards
Stock-based Payment Award
Awards granted	1.8	0.1	1.7
Weighted-average grant-date fair value (per award)	$ 11.58	$ 11.02	$ 6.25
Total fair value of vested awards distributed	$ 30.8	$ 4.6	$ 29.4

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Non-vested Award Activity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Stock-based Compensation Nonvested Rollforward
Weighted-average years expected to be recognized over	1.4
Stock options
Stock-based Compensation Nonvested Rollforward
Total unrecognized compensation expense remaining	$ 7.1
Stock-settled awards
Stock-based Compensation Nonvested Rollforward
Non-vested as of January 1, 2011	15.0
Granted	0.8	3.7	7.8
Vested	(5.3)
Forfeited	(1.3)
Non-vested as of December 31, 2011	9.2	15.0
Nonvested as of January 1, 2011, Weighted-average grant date fair value	$ 6.96
Granted, Weighted-average grant-date fair value	$ 11.94	$ 8.47	$ 4.21
Vested, Weighted-average grant date fair value	$ 8.82
Forfeited, Weighted-average grant date fair value	$ 6.41
Nonvested as of December 31, 2011, Weighted-average grant date fair value	$ 6.41	$ 6.96
Total unrecognized compensation expense remaining	14.9
Weighted-average years expected to be recognized over	0.8
Cash-settled awards
Stock-based Compensation Nonvested Rollforward
Non-vested as of January 1, 2011	2.7
Granted	0	0.6	1.4
Vested	(0.8)
Forfeited	(0.3)
Non-vested as of December 31, 2011	1.6	2.7
Nonvested as of January 1, 2011, Weighted-average grant date fair value	$ 7.14
Granted, Weighted-average grant-date fair value	$ 8.96	$ 8.50	$ 4.43
Vested, Weighted-average grant date fair value	$ 9.76
Forfeited, Weighted-average grant date fair value	$ 7.30
Nonvested as of December 31, 2011, Weighted-average grant date fair value	$ 5.85	$ 7.14
Total unrecognized compensation expense remaining	3.7
Weighted-average years expected to be recognized over	0.7
Performance-based awards
Stock-based Compensation Nonvested Rollforward
Non-vested as of January 1, 2011	3.6
Granted	1.8	0.1	1.7
Vested	(2.5)
Forfeited	(0.9)
Non-vested as of December 31, 2011	2.0	3.6
Nonvested as of January 1, 2011, Weighted-average grant date fair value	$ 8.38
Granted, Weighted-average grant-date fair value	$ 11.58	$ 11.02	$ 6.25
Vested, Weighted-average grant date fair value	$ 9.33
Forfeited, Weighted-average grant date fair value	$ 9.72
Nonvested as of December 31, 2011, Weighted-average grant date fair value	$ 10.84	$ 8.38
Total unrecognized compensation expense remaining	12.8
Weighted-average years expected to be recognized over	1.9
Performance based cash awards settled in shares
Stock-based Compensation Nonvested Rollforward
Total unrecognized compensation expense remaining	34.5
Weighted-average years expected to be recognized over	1.8
Cash awards granted during the period target value	31.9	19.0
Time based cash awards
Stock-based Compensation Nonvested Rollforward
Cash awards granted during the period target value	4.2	31.6	28.4
Performance based cash awards
Stock-based Compensation Nonvested Rollforward
Cash awards granted during the period target value	$ 39.3	$ 18.5	$ 31.7

ESPP (Details)	12 Months Ended
ESPP (Details)	Dec. 31, 2011
Employee Stock Purchase Plan description	90% of the lesser of the average market price of a share on the first business day of the offering period or the average market price of a share on the last business day of the offering period of three months
Stock Issued During Period, Shares, Employee Stock Purchase Plans	2,000,000
Employee stock purchase plan
Maximum Employee Subscription Rate	10.00%
Maximum Number of Shares Per Employee	900
Number of shares initially available for grant	15,000,000

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Fair value assets and liabilities measured on recurring and nonrecurring basis

Number of shares issued during the period as a result of an employee stock purchase plan.

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Fair Value Hierarchy (Details) (USD $)
In Millions, unless otherwise specified

Dec. 31, 2011

Dec. 31, 2010

Estimate of Fair Value, Fair Value Disclosure

$ 1,596.5

$ 1,744.4

12.9

13.7

10.3

15.1

Fair value of assets measured on a recurring basis, percentage of total assets

1,619.7

1,773.2

12.60%

13.60%

Fair value assets and liabilities measured on recurring and nonrecurring basis

58.9

^[1]

52.0

^[1]

Fair Value, Inputs, Level 1

1,596.5

1,744.4

12.9

13.7

1.3

Fair value of assets measured on a recurring basis, percentage of total assets

1,610.7

1,759.4

12.50%

13.50%

Fair value assets and liabilities measured on recurring and nonrecurring basis

^[1]

Fair Value, Inputs, Level 2

9.0

13.8

Fair value of assets measured on a recurring basis, percentage of total assets

9.0

13.8

0.10%

Fair value assets and liabilities measured on recurring and nonrecurring basis

^[1]

Fair Value, Inputs, Level 3

Fair value of assets measured on a recurring basis, percentage of total assets

0.00%

$ 58.9

^[1]

$ 52.0

^[1]

[1]

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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Fair Value Unobservable Inputs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Mandatorily redeemable noncontrolling interests
Fair value assets and liabilities measured on recurring basis unobservable input reconciliation
Balance at beginning of period, mandatorily redeemable noncontrolling interests	$ 52.0	$ 47.8
Level 3 additions	28.1	2.7
Level 3 reductions	(28.0)	(2.9)
Realized losses included in net income	(6.7)	(4.4)
Foreign currency translation	0.1	0
Balance at end of period, mandatorily redeemable noncontrolling interests	58.9	52.0
Level 3 additions	28.1	2.7
Level 3 reductions	(28.0)	(2.9)
Realized losses included in net income	(6.7)	(4.4)
Foreign currency translation	0.1	0
Foreign currency derivatives
Fair value assets and liabilities measured on recurring basis unobservable input reconciliation
Foreign currency translation		0
Foreign currency translation		0
Balance at beginning of period foreign currency derivatives		0.6
Level 3 additions		0
Level 3 reductions		0
Realized losses included in net income		(0.6)
Balance at end of period foreign currency derivatives		0
Level 3 additions		0
Level 3 reductions		0
Realized losses included in net income		$ (0.6)

Unrealized and realized gains and losses (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reported in comprehensive income
Unrealized gains	$ 0.3	$ 0.5	$ 0.9
Unrealized losses	0.4	0	0.5
Reported in other income, net
Realized gains	0	0.2	1.0
Realized losses	$ 0.3	$ 0	$ 0.6

Employee Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Number of Participants Domestic Pension Plan	4,200
Number of Participants Postretirement Benefit Plan	2,600
Deferred Compensation Arrangements [Abstract]
Deferred Compensation Liability	$ 96.0	$ 104.2
Deferred Compensation Expense	7.6	14.1	11.6
Deferred Benefit Liability	178.3	177.1
Deferred Benefit Expense	14.8	12.9	12.0
Cash Surrender Value of Life Insurance	144.9	123.2
Deferred Compensation Plan Assets	13.8	16.5
Supplemental Unemployment Benefits [Abstract]
Duration of disability benefits	24
Income Replacement Benefit Obligation	0	0
Health and Life Insurance Benefit Obligation	$ 9.3	$ 10.2

Pension and Postretirement Benefit Obligation (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets (Period End)	$ 470.8	$ 407.4
Domestic Pension Plans, Defined Benefit [Member]
Benefit Obligation [Roll Forward]
Benefit Obligation (Period Start)	130.9	139.6
Service Cost	0	0	0
Interest Cost	6.8	7.3	8.0
Benefits Paid	(11.9)	(16.6)
Contributions by Plan Participants	0	0
Actuarial Net Losses (Gains)	3.2	0.6
Curtailments and settlements	0	0
Foreign Currency Effect	0	0
Benefit Obligation, Other	0	0
Benefit Obligation (Period End)	129.0	130.9	139.6
Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets (Period Start)	95.3	91.1
Actual Return on Plan Assets	9.7	11.2
Contributions by Employer	14.1	9.6
Contributions by Plan Participants	0	0
Benefits Paid	(11.9)	(16.6)
Settlements	0	0
Foreign Currency Effect	0	0
Fair Value of Plan Assets, Other	0	0
Fair Value of Plan Assets (Period End)	107.2	95.3	91.1
Defined Benefit Plan, Funded Status of Plan	(21.8)	(35.6)
Amounts Recognized in Consolidated Balance Sheets
Non-current Asset	0	0
Current Liability	0	0
Non-current Liability	(21.8)	(35.6)
Net Liability Recognized	(21.8)	(35.6)
Accumulated Benefit Obligation	129.0	130.9
Amounts recognized in Accumulated Other Comprehensive Loss, net
Net Actuarial Loss	49.9	55.5
Prior Service Cost (Credit)	0	0.1
Transition Obligations	0	0
Total amount recognized	49.9	55.6
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year	6.1
Pension plans with underfunded or unfunded accumulated benefit obligation
Aggregate projected benefit obligation	129.0	130.9
Aggregate accumulated benefit obligation	129.0	130.9
Aggregate fair value of plan assets	107.2	95.3
Foreign Pension Plans, Defined Benefit [Member]
Benefit Obligation [Roll Forward]
Benefit Obligation (Period Start)	431.1	464.0
Service Cost	9.6	9.7	11.7
Interest Cost	23.3	22.8	23.2
Benefits Paid	(21.2)	(21.1)
Contributions by Plan Participants	0.7	0.7
Actuarial Net Losses (Gains)	13.5	(2.3)
Curtailments and settlements	(5.8)	(12.2)
Foreign Currency Effect	4.9	(15.1)
Benefit Obligation, Other	0.5	(15.4)
Benefit Obligation (Period End)	456.6	431.1	464.0
Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets (Period Start)	312.1	300.2
Actual Return on Plan Assets	9.0	28.3
Contributions by Employer	65.0	28.1
Contributions by Plan Participants	0.7	0.7
Benefits Paid	(21.2)	(21.1)
Settlements	(5.8)	(12.2)
Foreign Currency Effect	3.8	(7.4)
Fair Value of Plan Assets, Other	0	(4.5)
Fair Value of Plan Assets (Period End)	363.6	312.1	300.2
Defined Benefit Plan, Funded Status of Plan	(93.0)	(119.0)
Amounts Recognized in Consolidated Balance Sheets
Non-current Asset	19.6	8.1
Current Liability	(8.1)	(9.3)
Non-current Liability	(104.5)	(117.8)
Net Liability Recognized	(93.0)	(119.0)
Accumulated Benefit Obligation	432.8	408.8
Amounts recognized in Accumulated Other Comprehensive Loss, net
Net Actuarial Loss	55.2	32.3
Prior Service Cost (Credit)	1.9	1.6
Transition Obligations	0	0
Total amount recognized	57.1	33.9
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year	1.0
Pension plans with underfunded or unfunded accumulated benefit obligation
Aggregate projected benefit obligation	132.6	411.5
Aggregate accumulated benefit obligation	127.0	394.4
Aggregate fair value of plan assets	20.2	285.7
Domestic Postretirement Benefit Plans, Defined Benefit [Member]
Benefit Obligation [Roll Forward]
Benefit Obligation (Period Start)	51.8	55.1
Service Cost	0.2	0.3	0.4
Interest Cost	2.7	2.8	3.1
Benefits Paid	(6.2)	(7.0)
Contributions by Plan Participants	1.4	1.5
Actuarial Net Losses (Gains)	0.9	(0.9)
Curtailments and settlements	0	0
Foreign Currency Effect	0	0
Benefit Obligation, Other	0	0
Benefit Obligation (Period End)	50.8	51.8	55.1
Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets (Period Start)	0	0
Actual Return on Plan Assets	0	0
Contributions by Employer	4.8	5.5
Contributions by Plan Participants	1.4	1.5
Benefits Paid	(6.2)	(7.0)
Settlements	0	0
Foreign Currency Effect	0	0
Fair Value of Plan Assets, Other	0	0
Fair Value of Plan Assets (Period End)	0	0	0
Defined Benefit Plan, Funded Status of Plan	(50.8)	(51.8)
Amounts Recognized in Consolidated Balance Sheets
Non-current Asset	0	0
Current Liability	(4.9)	(4.5)
Non-current Liability	(45.9)	(47.3)
Net Liability Recognized	(50.8)	(51.8)
Amounts recognized in Accumulated Other Comprehensive Loss, net
Net Actuarial Loss	6.7	5.7
Prior Service Cost (Credit)	(0.3)	(0.4)
Transition Obligations	0.1	0.3
Total amount recognized	6.5	5.6
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year	$ 0.2

Net Periodic Cost (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Domestic Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	$ 0	$ 0	$ 0
Interest Cost	6.8	7.3	8.0
Expected return on plan assets	(7.5)	(7.0)	(7.4)
Curtailments and settlement losses	0	0	0
Amortization of:
Transition obligations	0	0	0
Prior service cost (credit)	0	0	0.1
Unrecognized actuarial losses	6.6	8.6	9.8
Defined Benefit Plan, Net Periodic Benefit Cost	5.9	8.9	10.5
Net Periodic Benefit, Discount Rate	5.50%	5.51%	6.01%
Expected Long-term Return on Assets	7.50%	7.49%	8.16%
Benefit Obligation, Discount Rate	5.00%	5.50%	5.53%
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	9.6	9.7	11.7
Interest Cost	23.3	22.8	23.2
Expected return on plan assets	(19.0)	(17.0)	(13.7)
Curtailments and settlement losses	0	1.4	2.5
Amortization of:
Transition obligations	0	0	0
Prior service cost (credit)	0.2	0.2	0.2
Unrecognized actuarial losses	0.7	1.9	2.3
Defined Benefit Plan, Net Periodic Benefit Cost	14.8	19.0	26.2
Net Periodic Benefit, Discount Rate	5.45%	5.50%	5.54%
Net Periodic Benefit, Rate of Compensation Increase	4.37%	4.43%	4.41%
Expected Long-term Return on Assets	5.88%	5.84%	5.05%
Benefit Obligation, Discount Rate	5.00%	5.45%	5.51%
Benefit Obligation, Rate of Compensation Increase	3.66%	4.34%	4.43%
Domestic Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	0.2	0.3	0.4
Interest Cost	2.7	2.8	3.1
Expected return on plan assets	0	0	0
Curtailments and settlement losses	0	0	0
Amortization of:
Transition obligations	0.1	0.2	0.1
Prior service cost (credit)	(0.1)	(0.1)	(0.1)
Unrecognized actuarial losses	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	$ 2.9	$ 3.2	$ 3.5
Net Periodic Benefit, Discount Rate	5.50%	5.50%	6.00%
Benefit Obligation, Discount Rate	5.00%	5.50%	5.50%
Health Care Cost Trend Rate Assumed for Next Year	8.00%	8.50%	8.00%
Year Ultimate Trend Rate is Reached	2016	2017	2015
Ultimate Health Care Cost Trend Rate	5.50%	5.50%	5.50%

Fair Value of Pension Plan Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	$ 470.8	$ 407.4
Target Allocation Percentage of Assets, Equity Securities	25.00%
Target Allocation Percentage of Assets, Debt Securities	47.00%
Target Allocation Percentage of Assets, Other	28.00%
Target Allocation Percentage	1
Equity Securities	20.00%	26.00%
Debt Securities	47.00%	47.00%
Other Plan Assets	33.00%	27.00%
Actual Plan Asset Allocations	100.00%	100.00%
Balance at beginning of period	57.2	43.8
Actual return on plan assets:
Assets sold during the year	0.1	(0.6)
Assets still held at year end	(1.8)	6.7
Net purchases, sales and settlements	29.5	1.5
Transfers in/out of Level 3	0	5.8
Balance at end of period	85.0	57.2
Fair Value, Inputs, Level 1
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	49.5	32.8
Fair Value, Inputs, Level 2
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	336.3	317.4
Fair Value, Inputs, Level 3
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	85.0	57.2
Investment Fund [Member]
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	369.3	362.5
Balance at beginning of period	53.9	38.6
Actual return on plan assets:
Assets sold during the year	0.1	(0.4)
Assets still held at year end	(0.6)	6.5
Net purchases, sales and settlements	(9.6)	3.0
Transfers in/out of Level 3	0	6.2
Balance at end of period	43.8	53.9
Investment Fund [Member] \| Fair Value, Inputs, Level 1
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	18.4	19.5
Investment Fund [Member] \| Fair Value, Inputs, Level 2
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	307.1	289.1
Investment Fund [Member] \| Fair Value, Inputs, Level 3
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	43.8	53.9
Insurance Contracts [Member]
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	24.8	25.1
Insurance Contracts [Member] \| Fair Value, Inputs, Level 1
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	0	0
Insurance Contracts [Member] \| Fair Value, Inputs, Level 2
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	24.8	25.1
Insurance Contracts [Member] \| Fair Value, Inputs, Level 3
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	0	0
Limited Partnership [Member]
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	41.1	3.2
Balance at beginning of period	3.2	4.7
Actual return on plan assets:
Assets sold during the year	0	(0.2)
Assets still held at year end	(1.2)	0.2
Net purchases, sales and settlements	39.1	(1.5)
Transfers in/out of Level 3	0	0
Balance at end of period	41.1	3.2
Limited Partnership [Member] \| Fair Value, Inputs, Level 1
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	0	0
Limited Partnership [Member] \| Fair Value, Inputs, Level 2
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	0	0
Limited Partnership [Member] \| Fair Value, Inputs, Level 3
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	41.1	3.2
Other Plan Assets [Member]
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	35.6	16.6
Balance at beginning of period	0.1	0.5
Actual return on plan assets:
Assets sold during the year	0	0
Assets still held at year end	0	0
Net purchases, sales and settlements	0	0
Transfers in/out of Level 3	0	(0.4)
Balance at end of period	0.1	0.1
Other Plan Assets [Member] \| Fair Value, Inputs, Level 1
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	31.1	13.3
Other Plan Assets [Member] \| Fair Value, Inputs, Level 2
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	4.4	3.2
Other Plan Assets [Member] \| Fair Value, Inputs, Level 3
Fair value assets and liabilities measured on recurring and nonrecurring basis
Fair Value of Plan Assets	$ 0.1	$ 0.1

Pension Cash Flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Disclosure of Expected Federal Subsidy Receipts [Abstract]
Prescription Drug Subsidy Receipts in 2012	$ 0.5
Prescription Drug Subsidy Receipts in 2013	0.6
Prescription Drug Subsidy Receipts in 2014	0.6
Prescription Drug Subsidy Receipts in 2015	0.5
Prescription Drug Subsidy Receipts in 2016	0.5
Prescription Drug Subsidy Receipts in 2017-2021	1.4
Domestic Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Contributions by Employer	14.1	9.6
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	5.6
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Expected Future Benefit Payments in 2012	11.0
Expected Future Benefit Payments in 2013	10.9
Expected Future Benefit Payments in 2014	10.6
Expected Future Benefit Payments in 2015	9.9
Expected Future Benefit Payments in 2016	10.3
Expected Future Benefit Payments in 2017-2021	44.4
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Contributions by Employer	65.0	28.1
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	15.7
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Expected Future Benefit Payments in 2012	21.8
Expected Future Benefit Payments in 2013	24.2
Expected Future Benefit Payments in 2014	24.8
Expected Future Benefit Payments in 2015	25.8
Expected Future Benefit Payments in 2016	26.7
Expected Future Benefit Payments in 2017-2021	153.7
Domestic Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Contributions by Employer	4.8	5.5
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
Expected Future Benefit Payments in 2012	5.4
Expected Future Benefit Payments in 2013	5.4
Expected Future Benefit Payments in 2014	5.3
Expected Future Benefit Payments in 2015	5.1
Expected Future Benefit Payments in 2016	5.0
Expected Future Benefit Payments in 2017-2021	$ 21.7

Savings Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Domestic Country [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Cost Recognized	$ 35.4	$ 34.3	$ 35.1
Discretionary Company Contribution [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Cost Recognized	3.7	3.6	3.8
Defined Contribution Plans Participant Forfeitures [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Cost Recognized	(2.6)	(2.4)	(2.7)
Foreign Country [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Cost Recognized	$ 30.8	$ 26.2	$ 25.0

Segment Information Operations (Details) (USD $)
In Millions, unless otherwise specified

3 Months Ended

12 Months Ended

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2010

Sep. 30, 2010

Jun. 30, 2010

Mar. 31, 2010

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2009

Segments:

Revenue

$ 2,072.6

$ 1,726.5

$ 1,740.7

$ 1,474.8

$ 2,005.2

$ 1,553.4

$ 1,611.7

$ 1,337.0

$ 7,014.6

$ 6,507.3

$ 6,007.4

Restructuring and other reorganization-related charges, net

688.2

552.6

345.9

(0.2)

0.2

(0.2)

(0.8)

(1.6)

(1.4)

(0.6)

(0.3)

(1.0)

(3.9)

(4.6)

Interest expense

(136.8)

(139.7)

(155.6)

Interest income

37.8

28.7

35.0

Other income, net

13.9

137.1

^[1]

5.3

(6.1)

17.6

(3.1)

(2.1)

0.5

150.2

12.9

11.7

Income before income taxes

738.4

450.6

232.4

Depreciation and amortization of fixed assets and intangible assets

150.9

148.4

169.9

140.3

96.3

67.1

IAN

Segments:

Segment revenue

5,891.8

5,468.4

5,061.7

Depreciation and amortization of fixed assets and intangible assets

728.8

617.6

423.4

125.7

116.7

131.6

94.1

83.5

50.0

CMG

Segments:

Segment revenue

1,122.8

1,038.9

945.7

Depreciation and amortization of fixed assets and intangible assets

101.4

80.3

73.1

12.8

14.2

15.0

16.9

6.9

5.7

Corporate and other

Segments:

Depreciation and amortization of fixed assets and intangible assets

(142.0)

(145.3)

(150.6)

12.4

17.5

23.3

$ 29.3

$ 5.9

$ 11.4

[1]	The three months ended September 30, 2011, includes a pre-tax gain of $132.2 related to the sale of approximately half of our holdings in Facebook, Inc.

Segment Information Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Segments:
Assets	$ 12,876.6	$ 13,070.8
IAN
Segments:
Assets	10,589.2	10,481.7
CMG
Segments:
Assets	1,019.9	930.5
Corporate and other
Segments:
Assets	$ 1,267.5	$ 1,658.6

Business Acquisition, Contingent Consideration [Line Items]

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References+ Details

Segment Information Segment Information by Major Geographic Area (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues and Long-Lived Assets
Long-Lived Assets	$ 796.5				$ 791.5				$ 796.5	$ 791.5
Revenue	2,072.6	1,726.5	1,740.7	1,474.8	2,005.2	1,553.4	1,611.7	1,337.0	7,014.6	6,507.3	6,007.4
Domestic
Revenues and Long-Lived Assets
Long-Lived Assets	477.2				480.6				477.2	480.6
Revenue									3,887.7	3,709.9	3,372.3
Total international
Revenues and Long-Lived Assets
Long-Lived Assets	319.3				310.9				319.3	310.9
Revenue									3,126.9	2,797.4	2,635.1
United Kingdom
Revenues and Long-Lived Assets
Long-Lived Assets	65.2				47.4				65.2	47.4
Revenue									539.4	469.6	458.5
Continental Europe
Revenues and Long-Lived Assets
Long-Lived Assets	72.1				85.2				72.1	85.2
Revenue									908.9	863.2	922.2
Asia Pacific
Revenues and Long-Lived Assets
Long-Lived Assets	78.4				82.1				78.4	82.1
Revenue									741.7	639.8	575.4
Latin America
Revenues and Long-Lived Assets
Long-Lived Assets	69.1				57.8				69.1	57.8
Revenue									444.4	363.3	287.1
Other
Revenues and Long-Lived Assets
Long-Lived Assets	34.5				38.4				34.5	38.4
Revenue									$ 492.5	$ 461.5	$ 391.9

Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Commitments and Contingencies Disclosure [Abstract]
Gross rent expense	$ 369.5	$ 365.2	$ 391.5
Third-party sublease rental income	(19.4)	(20.0)	(26.8)
Net rent expense	$ 350.1	$ 345.2	$ 364.7

Commitments and Contingencies Future minimum lease payments (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Operating Leases, Future Minimum Payments Due [Abstract]
Rent Obligations, due 2012	$ 313.1
Rent Obligations, due 2013	277.1
Rent Obligations, due 2014	224.0
Rent Obligations, due 2015	186.5
Rent Obligations, due 2016	147.1
Rent Obligations, due thereafter	487.9
Total Rent Obligations	1,635.7
Sublease Rental Income, due 2012	(26.9)
Sublease Rental Income, due 2013	(26.0)
Sublease Rental Income, due 2014	(13.9)
Sublease Rental Income, due 2015	(6.1)
Sublease Rental Income, due 2016	(1.4)
Sublease Rental Income, due thereafter	(0.8)
Total Sublease Rental Income	(75.1)
Net Rent, due 2012	286.2
Net Rent, due 2013	251.1
Net Rent, due 2014	210.1
Net Rent, due 2015	180.4
Net Rent, due 2016	145.7
Net Rent, due thereafter	487.1
Total Net Rent	$ 1,560.6

Commitments and Contingencies Guarantees (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract]
Parent company guarantees on lease obligations	$ 385.1	$ 376.8
Parent company guarantees relating to credit facilities	327.5	395.0
Assets pledged as security for parent company guarantees	$ 0

Commitments and Contingencies Deferred Acquisition Payments (Details) (USD $)
In Millions, unless otherwise specified

Dec. 31, 2011

Redeemable noncontrolling interests and call options with affiliates

$ 120.6

129.0

^[1]

249.6

4.3

Contingent acquisition obligation payments for redeemable noncontrolling interests

245.3

4.6

2012

Business Acquisition, Contingent Consideration [Line Items]

Redeemable noncontrolling interests and call options with affiliates

40.7

15.6

^[1]

56.3

3.6

Business Acquisition, Contingent Consideration [Line Items]

52.7

2013

Redeemable noncontrolling interests and call options with affiliates

13.6

53.4

^[1]

67.0

0.3

Business Acquisition, Contingent Consideration [Line Items]

66.7

2014

Redeemable noncontrolling interests and call options with affiliates

14.5

22.8

^[1]

37.3

0.2

Business Acquisition, Contingent Consideration [Line Items]

37.1

2015

Redeemable noncontrolling interests and call options with affiliates

5.9

26.5

^[1]

32.4

0.2

Business Acquisition, Contingent Consideration [Line Items]

32.2

2016

Redeemable noncontrolling interests and call options with affiliates

29.3

4.0

^[1]

33.3

Business Acquisition, Contingent Consideration [Line Items]

33.3

Thereafter

Redeemable noncontrolling interests and call options with affiliates

16.6

6.7

^[1]

23.3