Omnicom (OMC) 10-Q 21 Apr 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 10, 2015
Document Information [Line Items]
Entity Registrant Name	OMNICOM GROUP INC.
Entity Central Index Key	29989
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		244,312,135

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Current Assets:
Cash and cash equivalents	$1,526.70	$2,388.10
Short-term investments, at cost	5.7	2.2
Accounts receivable, net of allowance for doubtful accounts of $23.5 and $24.9	5,840.10	6,524.70
Work in process	1,410.30	1,166.60
Other current assets	1,122.10	1,108.90
Total Current Assets	9,904.90	11,190.50
Property and Equipment at cost, less accumulated depreciation of $1,212.0 and $1,221.2	681.5	708
Equity Method Investments	142.2	148.2
Goodwill	8,639.80	8,822.20
Intangible Assets, net of accumulated amortization of $620.4 and $611.4	367.2	389.4
Other Assets	335.4	301.4
TOTAL ASSETS	20,071	21,559.70
Current Liabilities:
Accounts payable	7,850.20	8,797.50
Customer advances	1,153.30	1,180.90
Current portion of debt	0.3	0.4
Short-term borrowings	9.6	7.2
Taxes payable	226.5	301.1
Other current liabilities	1,781.30	1,774
Total Current Liabilities	11,021.20	12,061.10
Long-Term Notes Payable	4,593.80	4,562.60
Long-Term Liabilities	802.6	774.3
Long-Term Deferred Tax Liabilities	643.3	654.7
Commitments and Contingent Liabilities (See Note 11)
Temporary Equity - Redeemable Noncontrolling Interests	177.4	185.7
Shareholders’ Equity:
Preferred stock	0	0
Common stock	59.6	59.6
Additional paid-in capital	852	818.6
Retained earnings	9,661.70	9,576.90
Accumulated other comprehensive income (loss)	-936.7	-618.2
Treasury stock, at cost	-7,247.10	-6,986.90
Total Shareholders’ Equity	2,389.50	2,850
Noncontrolling interests	443.2	471.3
Total Equity	2,832.70	3,321.30
TOTAL LIABILITIES AND EQUITY	$20,071	$21,559.70

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Allowance for doubtful accounts	$23.50	$24.90
Accumulated depreciation	1,212	1,221.20
Intangible assets, accumulated amortization	$620.40	$611.40

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue	$3,469.20	$3,502.20
Operating Expenses	3,091.50	3,119.50
Operating Income	377.7	382.7
Interest Expense	43.6	47.7
Interest Income	9.4	8.7
Income Before Income Taxes and Income From Equity Method Investments	343.5	343.7
Income Tax Expense	112.7	116.3
Income (Loss) From Equity Method Investments	-1	0.6
Net Income	229.8	228
Net Income Attributed To Noncontrolling Interests	20.7	22.5
Net Income - Omnicom Group Inc.	$209.10	$205.50
Net Income Per Share - Omnicom Group Inc.:
Basic	$0.84	$0.78
Diluted	$0.83	$0.77
Dividends Declared Per Common Share	$0.50	$0.40

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Income	$229.80	$228
Unrealized gain (loss) on cash flow hedge, net of income taxes of ($1.7) for the three months ended March 31, 2015	-2.5	0
Unrealized gain (loss) on available-for-sale securities, net of income taxes of $0.1 and $0.1 for the three months ended March 31, 2015 and 2014, respectively	0.2	0.1
Foreign currency translation adjustment, net of income taxes of ($175.8) and $15.6 for the three months ended March 31, 2015 and 2014, respectively	-341.3	30.2
Defined benefit pension and postemployment plans adjustment, net of income taxes of $1.5 and $0.9 for the three months ended March 31, 2015 and 2014, respectively	2.2	1.4
Other Comprehensive Income (Loss)	-341.4	31.7
Comprehensive Income (Loss)	-111.6	259.7
Comprehensive Income (Loss) Attributed to Noncontrolling Interests	-2.2	32.3
Comprehensive Income (Loss) - Omnicom Group Inc.	($109.40)	$227.40

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Unrealized gain (loss) on cash flow hedge, income taxes	($1.70)	$0
Unrealized gain (loss) on available-for-sale securities, income taxes	0.1	0.1
Foreign currency translation adjustment, income taxes	-175.8	15.6
Defined benefit pension and postemployment plans adjustment, income taxes	$1.50	$0.90

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash Flows from Operating Activities:
Net Income	$229.80	$228
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation	46.9	46.5
Amortization of intangible assets	27.3	24.4
Share-based compensation	24.6	21.6
Excess tax benefit from share-based compensation	-10.9	-8.8
Other, net	3.8	0.3
Change in operating capital	-559.5	-742.3
Net Cash Used In Operating Activities	-238	-430.3
Cash Flows from Investing Activities:
Capital expenditures	-38.2	-42.5
Acquisition of businesses and interests in affiliates, net of cash acquired	-22.8	-11.9
(Purchase of) proceeds from investments, net	-3.9	11.9
Net Cash Used In Investing Activities	-64.9	-42.5
Cash Flows from Financing Activities:
Proceeds from short-term debt	2.7	1.7
Dividends paid to common shareholders	-126.2	-105.9
Repurchases of common stock	-270.7	-22.1
Proceeds from stock plans	3.7	4.8
Acquisition of additional noncontrolling interests	-3.1	-8.4
Dividends paid to noncontrolling interest shareholders	-25	-24.8
Payment of contingent purchase price obligations	-1.8	-7.8
Excess tax benefit from share-based compensation	10.9	8.8
Other, net	-9	-3.2
Net Cash Used In Financing Activities	-418.5	-156.9
Effect of foreign exchange rate changes on cash and cash equivalents	-140	1.3
Net Decrease in Cash and Cash Equivalents	-861.4	-628.4
Cash and Cash Equivalents at the Beginning of Period	2,388.10	2,710.50
Cash and Cash Equivalents at the End of Period	$1,526.70	$2,082.10

Presentation_of_Financial_Stat

Presentation of Financial Statements	3 Months Ended
	Mar. 31, 2015
Presentation of Financial Statements [Abstract]
Presentation of Financial Statements	Presentation of Financial Statements
	The terms “Omnicom,” the “Company,” “we,” “our” and “us” each refer to Omnicom Group Inc. and our subsidiaries, unless the context indicates otherwise. The accompanying unaudited condensed consolidated financial statements were prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”) for interim financial information and Article 10 of Regulation S-X of the Securities and Exchange Commission. Accordingly, certain information and footnote disclosure have been condensed or omitted.
	In our opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, consisting of normal recurring accruals, considered necessary for a fair presentation, in all material respects, of the information contained herein. Certain reclassifications have been made to the prior year financial information to conform to the current year presentation. These unaudited condensed consolidated financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014 (“2014 10-K”). Results for the interim periods are not necessarily indicative of results that may be expected for the year.

New_Accounting_Standards

New Accounting Standards	3 Months Ended
	Mar. 31, 2015
New Accounting Standards [Abstract]
New Accounting Standards	New Accounting Standards
	In May 2014, the FASB issued FASB ASU 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”), which replaces all existing revenue recognition guidance under U.S. GAAP. ASU 2014-09 is effective for annual and interim periods beginning after December 15, 2016 and early application is not permitted. ASU 2014-09 provides for one of two methods of transition: retrospective application to each prior period presented; or, recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. On April 1, 2015, the FASB proposed a one year deferral of the effective date to December 15, 2017 and early application would be permitted, but not before the original effective date of December 15, 2016. Presently, we are not yet in a position to assess the application date, the transition method we will choose, or the impact of the application on our results of operations or financial position.
	In February 2015, the FASB issued FASB ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis (“ASU 2015-02”), which changes the consolidation analysis for both the variable interest model and for the voting model for limited partnerships and similar entities. ASU 2015-02 is effective for annual and interim periods beginning after December 15, 2015 and early application is permitted. ASU 2015-02 provides for one of two methods of transition: retrospective application to each prior period presented; or, recognition of the cumulative effect of retrospective application of the new standard in the period of initial application. We will apply ASU 2015-02 on January 1, 2016 and we do not expect that the application of the new standard will have a significant impact on our results of operations or financial position.

Net_Income_Per_Common_Share

Net Income Per Common Share	3 Months Ended
	Mar. 31, 2015
Net Income per Common Share [Abstract]
Net Income per Common Share	Net Income per Common Share
	The computation of basic and diluted net income per common share for the three months ended March 31, 2015 and 2014 was (in millions, except per share amounts):
		2015			2014
	Net Income Available for Common Shares:
	Net income - Omnicom Group Inc.	$	209.1		$	205.5
	Net income allocated to participating securities	(2.8		)	(4.1		)
		$	206.3		$	201.4
	Weighted Average Shares:
	Basic	246.4			259.1
	Dilutive stock options and restricted shares	1			2.3
	Diluted	247.4			261.4
	Anti-dilutive stock options and restricted shares	0.1			0.1
	Net Income per Common Share - Omnicom Group Inc.:
	Basic	$	0.84		$	0.78
	Diluted	$	0.83		$	0.77

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	Goodwill and intangible assets at March 31, 2015 and December 31, 2014 were (in millions):
		2015								2014
		Gross			Accumulated			Net		Gross		Accumulated			Net
		Carrying			Amortization			Carrying		Carrying		Amortization			Carrying
		Value						Value		Value					Value
	Goodwill	$	9,170.60		$	(530.8	)	$	8,639.80	$	9,377.60	$	(555.4	)	$	8,822.20
	Intangible assets:
	Purchased and internally developed software	$	296.5		$	(222.1	)	$	74.4	$	298.7	$	(221.4	)	$	77.3
	Customer related and other	691.1			(398.3		)	292.8		702.1		(390.0		)	312.1
		$	987.6		$	(620.4	)	$	367.2	$	1,000.80	$	(611.4	)	$	389.4
	Changes in goodwill for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	1-Jan	$	8,822.20		$	8,916.00
	Acquisitions	65.1			51.4
	Dispositions	(0.3		)	(1.2		)
	Foreign currency translation	(247.2		)	20.5
	31-Mar	$	8,639.80		$	8,986.70
	There were no goodwill impairment losses recorded in the first three months of 2015 or 2014 and there are no accumulated goodwill impairment losses. Goodwill for acquisitions completed in 2015 and 2014 includes $1.8 million and $10.9 million, respectively, of goodwill attributed to noncontrolling interests in the acquired businesses.

Debt

Debt	3 Months Ended
	Mar. 31, 2015
Debt [Abstract]
Debt	Debt
	Lines of Credit
	We maintain a $2.5 billion line of credit (“Credit Agreement”) expiring on July 31, 2019. We have the ability to classify borrowings under the Credit Agreement as long-term. Additionally, we can issue up to $2.0 billion of commercial paper. At March 31, 2015 and December 31, 2014 there were no outstanding commercial paper issuances or borrowings under the Credit Agreement. We also have uncommitted credit lines aggregating $908.9 million and $937.8 million at March 31, 2015 and December 31, 2014, respectively.
	Available and unused credit lines at March 31, 2015 and December 31, 2014 were (in millions):
		2015			2014
	Credit Agreement	$	2,500.00		$	2,500.00
	Uncommitted credit lines	908.9			937.8
	Available and unused credit lines	$	3,408.90		$	3,437.80
	The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period. At March 31, 2015, we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.9 times. The Credit Agreement does not limit our ability to declare or pay dividends or repurchase our common stock.
	Short-Term Borrowings
	Short-term borrowings of $9.6 million and $7.2 million at March 31, 2015 and December 31, 2014, respectively, are comprised of bank overdrafts and credit lines of our international subsidiaries. The bank overdrafts and credit lines are treated as unsecured loans pursuant to the agreements supporting the facilities. Due to the short-term nature of these instruments, carrying value approximates fair value.
	Long-Term Notes Payable
	Long-term notes payable at March 31, 2015 and December 31, 2014 were (in millions):
		2015			2014
	5.9% Senior Notes due 2016	$	1,000.00		$	1,000.00
	6.25% Senior Notes due 2019	500			500
	4.45% Senior Notes due 2020	1,000.00			1,000.00
	3.625% Senior Notes due 2022	1,250.00			1,250.00
	3.65% Senior Notes due 2024	750			750
	Other notes and loans	0.3			0.5
		4,500.30			4,500.50
	Unamortized premium (discount) on Senior Notes, net	10.9			11.1
	Adjustment to carrying value for interest rate swaps	82.9			51.4
		4,594.10			4,563.00
	Current portion of debt	(0.3		)	(0.4		)
	Long-term notes payable	$	4,593.80		$	4,562.60
	In 2014, we entered into receive fixed pay floating interest rate swaps on the $1.25 billion principal amount of our 3.625% Senior Notes due 2022 (“2022 Notes”) and on the $1 billion principal amount of our 4.45% Senior Notes due 2020 (“2020 Notes”). The interest rate swaps hedge the risk of changes in fair value of the 2022 Notes and the 2020 Notes attributable to changes in the benchmark LIBOR interest rate. Under the swap contracts, we receive fixed interest payments equal to the coupon interest rate on the 2022 Notes and the 2020 Notes and pay a variable interest rate on the total principal amount of the notes, equal to three month LIBOR in arrears, plus a spread of 1.05% on the 2022 Notes and a spread of 2.16% on the 2020 Notes. The swaps qualify and are designated as fair value hedges on the 2022 Notes and 2020 Notes, respectively. The swaps have the economic effect of converting the 2022 Notes and the 2020 Notes from fixed rate debt to floating rate debt. Gains and losses attributed to changes in the fair value of the interest rate swaps substantially offset changes in the fair value of the 2022 Notes and the 2020 Notes attributed to changes in the benchmark interest rate. The net interest settlement is recorded in interest expense. At March 31, 2015 and December 31, 2014, we recorded a receivable, which is included in other assets, of $76.0 million and $42.7 million, respectively, representing the fair value of the swaps that was substantially offset by the increase in the carrying value of the 2022 Notes and the 2020 Notes reflecting the change in fair value of the notes. Accordingly, any hedge ineffectiveness was not material to our results of operations.

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting
	Our five branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups. The agency networks' regional reporting units comprise three principal regions; the Americas, EMEA and Asia Pacific. The regional reporting units monitor the performance and are responsible for the agencies in their region. Agencies within the regional reporting units serve similar clients in similar industries and in many cases the same clients and have similar economic characteristics. The main economic components of each agency are employee compensation and related costs and direct service costs and office and general costs which include rent and occupancy costs, technology costs and other overhead expenses. Therefore, given these similarities, we aggregate our operating segments, which are our five agency networks, into one reporting segment.
	Revenue and long-lived assets and goodwill by geographic region as of and for the three months ended March 31, 2015 and 2014 were (in millions):
		Americas		EMEA		Asia Pacific
	2015
	Revenue	$	2,151.00	$	961.4	$	356.8
	Long-lived assets and goodwill	6,136.30		2,635.60		549.4
	2014
	Revenue	$	2,081.30	$	1,061.60	$	359.3
	Long-lived assets and goodwill	6,101.20		3,009.00		608.5
	The Americas comprises North America, which includes the United States, Canada and Puerto Rico, and Latin America, which includes Mexico. EMEA comprises the United Kingdom, the Euro currency countries, other European countries that have not adopted the European Union Monetary standard, the Middle East and Africa. Asia Pacific comprises Australia, China, India, Japan, Korea, New Zealand, Singapore and other Asian countries. Revenue in the United States for the three months ended March 31, 2015 and 2014 was $1,958.2 million and $1,871.8 million, respectively.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Taxes [Abstract]
Income Taxes	Income Taxes
	Our effective tax rate decreased to 32.8% for the three months ended March 31, 2015 from 33.8% for the three months ended March 31, 2014. The decrease is primarily due to a legal entity restructuring of our European operations.  As a result of the reorganization, a certain portion of the not indefinitely reinvested foreign earnings in the affected countries are subject to lower effective tax rates.
	At March 31, 2015, our unrecognized tax benefits were $134.7 million. Of this amount, approximately $57.1 million would affect our effective tax rate upon resolution of the uncertain tax positions.

Pension_and_Other_Postemployme

Pension and Other Postemployment Benefits	3 Months Ended
	Mar. 31, 2015
Pension and Other Postemployment Benefits [Abstract]
Pension and Other Postemployment Benefits	Pension and Other Postemployment Benefits
	Defined Benefit Pension Plans
	The components of net periodic benefit cost for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Service cost	$	1.2		$	1.7
	Interest cost	1.7			1.7
	Expected return on plan assets	(0.7		)	(0.7		)
	Amortization of prior service cost	1.1			1.1
	Amortization of actuarial (gains) losses	1.4			0.5
		$	4.7		$	4.3
	We contributed $0.4 million and $0.2 million to our defined benefit pension plans in the three months ended March 31, 2015 and 2014, respectively.
	Postemployment Arrangements
	The components of net periodic benefit cost for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Service cost	$	1.2		$	1
	Interest cost	1.1			1.1
	Amortization of prior service cost	0.8			0.5
	Amortization of actuarial (gains) losses	0.4			0.2
		$	3.5		$	2.8

Operating_Expenses

Operating Expenses	3 Months Ended
	Mar. 31, 2015
Operating Expenses [Abstract]
Operating Expenses	Operating Expenses
	Operating expenses for the three months ended March 31, 2015 and 2014 were comprised of (in millions):
		2015		2014
	Salary and service costs	$	2,620.80	$	2,622.80
	Office and general expenses	470.7		496.7
		$	3,091.50	$	3,119.50
	For the three months ended March 31, 2014, we incurred $7.0 million of expenses in connection with the proposed merger with Publicis Groupe S.A.(“Publicis”), which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

Supplemental_Cash_Flow_Data

Supplemental Cash Flow Data	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Data [Abstract]
Supplemental Cash Flow Data	Supplemental Cash Flow Data
	The change in operating capital for the three months ended March 31, 2015 and 2014 was (in millions):
		2015			2014
	(Increase) decrease in accounts receivable	$	467.3		$	627.4
	(Increase) decrease in work in process and other current assets	(332.1		)	(188.5		)
	Increase (decrease) in accounts payable	(697.8		)	(993.1		)
	Increase (decrease) in customer advances and other current liabilities	26.1			(51.4		)
	Change in other assets and liabilities, net	(23.0		)	(136.7		)
		$	(559.5	)	$	(742.3	)
	Income taxes paid	$	144.3		$	165.9
	Interest paid	$	35.2		$	41.6

Commitments_and_Contingent_Lia

Commitments and Contingent Liabilities	3 Months Ended
	Mar. 31, 2015
Commitments and Contingent Liabilities [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities
	In the ordinary course of business, we are involved in various other legal proceedings. We do not presently expect that these other proceedings will have a material adverse effect on our results of operations or financial position.

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2015
Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss)	Changes in Accumulated Other Comprehensive Income (Loss)
	The changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2015 and 2014 were (in millions):
	2015	Unrealized			Unrealized			Defined Benefit Pension and Postemployment Plans			Foreign			Total
		Gain (Loss) on Cash Flow Hedge			Gain (Loss) on Available-for-Sale Securities						Currency Translation
	1-Jan	$	—		$	(1.2	)	$	(92.1	)	$	(524.9	)	$	(618.2	)
	Other comprehensive income (loss) before reclassifications	(2.5		)	0.2			—			(318.4		)	(320.7		)
	Amounts reclassified from accumulated other comprehensive income (loss)	—			—			2.2			—			2.2
	Other comprehensive income (loss)	(2.5		)	0.2			2.2			(318.4		)	(318.5		)
	31-Mar	$	(2.5	)	$	(1.0	)	$	(89.9	)	$	(843.3	)	$	(936.7	)
	2014
	1-Jan	$	—		$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
	Other comprehensive income (loss) before reclassifications	—			0.1			—			20.4			20.5
	Amounts reclassified from accumulated other comprehensive income (loss)	—			—			1.4			—			1.4
	Other comprehensive income (loss)	—			0.1			1.4			20.4			21.9
	31-Mar	$	—		$	(1.5	)	$	(67.4	)	$	(100.8	)	$	(169.7	)
	On March 26, 2015, we entered into a $1 billion receive floating (3 Month LIBOR) pay fixed (2.3209%) forward-starting 10-year interest rate swap in connection with the upcoming maturity of our $1 billion 5.9% Senior Notes on April 15, 2016. The swap mitigates the risk of changes in the semi-annual interest payments during the period March 26, 2015 to May 2, 2016, the contractual termination date of the swap, and effectively locks in the fixed interest rate, excluding the effect of our credit spread, on any refinancing. Accordingly, the swap is designated as a cash flow hedge of the semi-annual interest rate payments attributable to changes in the benchmark interest rate. We expect that the swap will have almost no ineffectiveness and is carried on the balance sheet at fair value and any net gain or loss on the swap is recorded in accumulated other comprehensive income. Upon termination of the swap, any gain or loss will be amortized to interest expense or will be recorded in our results of operations if the refinancing is not completed. At March 31, 2015, we recorded a liability of $4.2 million, which is included in long-term liabilities and the related loss of $2.5 million, net of income taxes, in other comprehensive income.
	Reclassifications from accumulated other comprehensive income (loss) for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Amortization of defined benefit pension and postemployment plans:
	Prior service cost	$	1.9		$	1.6
	Actuarial (gains) losses	1.8			0.7
	Net periodic benefit cost (see Note 8)	3.7			2.3
	Income taxes	1.5			0.9
	Periodic benefit cost, net of income tax	$	2.2		$	1.4

Fair_Value

Fair Value	3 Months Ended
	Mar. 31, 2015
Fair Value [Abstract]
Fair Value	Fair Value
	Financial assets and liabilities measured at fair value on a recurring basis at March 31, 2015 and December 31, 2014 were (in millions):
	2015	Level 1			Level 2			Level 3		Total
	Assets:
	Cash and cash equivalents	$	1,526.70							$	1,526.70
	Short-term investments	5.7								5.7
	Available-for-sale securities	5								5
	Interest rate and foreign currency derivative instruments				$	76.5				76.5
	Liabilities:
	Interest rate and foreign currency derivative instruments				$	4.9				$	4.9
	Contingent purchase price obligations							$	332.5	332.5
	2014
	Assets:
	Cash and cash equivalents	$	2,388.10							$	2,388.10
	Short-term investments	2.2								2.2
	Available-for-sale securities	4.9								4.9
	Interest rate and foreign currency derivative instruments				$	43.1				43.1
	Liabilities:
	Foreign currency derivative instruments				$	0.4				$	0.4
	Contingent purchase price obligations							$	300.7	300.7
	The changes in Level 3 contingent purchase price obligations for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	1-Jan	$	300.7		$	220.2
	Acquisitions	46.3			43.2
	Revaluation and interest	2.2			(0.8		)
	Payments	(1.8		)	(7.8		)
	Foreign currency translation	(14.9		)	2
	31-Mar	$	332.5		$	256.8
	The carrying amount and fair value of our financial instruments at March 31, 2015 and December 31, 2014 were (in millions):
		2015						2014
		Carrying			Fair			Carrying		Fair
		Amount			Value			Amount		Value
	Assets:
	Cash and cash equivalents	$	1,526.70		$	1,526.70		$	2,388.10	$	2,388.10
	Short-term investments	5.7			5.7			2.2		2.2
	Available-for-sale securities	5			5			4.9		4.9
	Interest rate and foreign currency derivative instruments	76.5			76.5			43.1		43.1
	Cost method investments	20.8			20.8			21.8		21.8
	Liabilities:
	Short-term borrowings	$	9.6		$	9.6		$	7.2	$	7.2
	Interest rate and foreign currency derivative instruments	4.9			4.9			0.4		0.4
	Contingent purchase price obligations	332.5			332.5			300.7		300.7
	Debt	4,594.10			4,820.90			4,563.00		4,754.90
	The estimated fair value of the foreign currency and interest rate derivative instruments is determined using model-derived valuations, taking into consideration foreign currency rates for the foreign currency derivatives and readily observable inputs for LIBOR interest rates and yield curves to derive the present value of the future cash flows for the interest rate swap derivatives and counterparty credit risk for each. The estimated fair value of the contingent purchase price obligations is calculated in accordance with the terms of each acquisition agreement and is discounted. The fair value of debt is based on quoted market prices.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events
	We have evaluated events subsequent to the balance sheet date and determined there have not been any events that have occurred that would require adjustment to or disclosure in the condensed consolidated financial statements.

Net_Income_Per_Common_Share_Ta

Net Income Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2015
Net Income per Common Share [Abstract]
Computations of Basic and Diluted Net Income per Common Share - Omnicom Group Inc.	The computation of basic and diluted net income per common share for the three months ended March 31, 2015 and 2014 was (in millions, except per share amounts):
		2015			2014
	Net Income Available for Common Shares:
	Net income - Omnicom Group Inc.	$	209.1		$	205.5
	Net income allocated to participating securities	(2.8		)	(4.1		)
		$	206.3		$	201.4
	Weighted Average Shares:
	Basic	246.4			259.1
	Dilutive stock options and restricted shares	1			2.3
	Diluted	247.4			261.4
	Anti-dilutive stock options and restricted shares	0.1			0.1
	Net Income per Common Share - Omnicom Group Inc.:
	Basic	$	0.84		$	0.78
	Diluted	$	0.83		$	0.77

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and intangible assets at March 31, 2015 and December 31, 2014 were (in millions):
		2015								2014
		Gross			Accumulated			Net		Gross		Accumulated			Net
		Carrying			Amortization			Carrying		Carrying		Amortization			Carrying
		Value						Value		Value					Value
	Goodwill	$	9,170.60		$	(530.8	)	$	8,639.80	$	9,377.60	$	(555.4	)	$	8,822.20
	Intangible assets:
	Purchased and internally developed software	$	296.5		$	(222.1	)	$	74.4	$	298.7	$	(221.4	)	$	77.3
	Customer related and other	691.1			(398.3		)	292.8		702.1		(390.0		)	312.1
		$	987.6		$	(620.4	)	$	367.2	$	1,000.80	$	(611.4	)	$	389.4
Changes in Goodwill	Changes in goodwill for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	1-Jan	$	8,822.20		$	8,916.00
	Acquisitions	65.1			51.4
	Dispositions	(0.3		)	(1.2		)
	Foreign currency translation	(247.2		)	20.5
	31-Mar	$	8,639.80		$	8,986.70

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt [Abstract]
Available and Unused Lines of Credit	Available and unused credit lines at March 31, 2015 and December 31, 2014 were (in millions):
		2015			2014
	Credit Agreement	$	2,500.00		$	2,500.00
	Uncommitted credit lines	908.9			937.8
	Available and unused credit lines	$	3,408.90		$	3,437.80
Long-Term Notes Payable	Long-term notes payable at March 31, 2015 and December 31, 2014 were (in millions):
		2015			2014
	5.9% Senior Notes due 2016	$	1,000.00		$	1,000.00
	6.25% Senior Notes due 2019	500			500
	4.45% Senior Notes due 2020	1,000.00			1,000.00
	3.625% Senior Notes due 2022	1,250.00			1,250.00
	3.65% Senior Notes due 2024	750			750
	Other notes and loans	0.3			0.5
		4,500.30			4,500.50
	Unamortized premium (discount) on Senior Notes, net	10.9			11.1
	Adjustment to carrying value for interest rate swaps	82.9			51.4
		4,594.10			4,563.00
	Current portion of debt	(0.3		)	(0.4		)
	Long-term notes payable	$	4,593.80		$	4,562.60

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Revenue and Long-Lived Assets and Goodwill by Geographic Region	Revenue and long-lived assets and goodwill by geographic region as of and for the three months ended March 31, 2015 and 2014 were (in millions):
		Americas		EMEA		Asia Pacific
	2015
	Revenue	$	2,151.00	$	961.4	$	356.8
	Long-lived assets and goodwill	6,136.30		2,635.60		549.4
	2014
	Revenue	$	2,081.30	$	1,061.60	$	359.3
	Long-lived assets and goodwill	6,101.20		3,009.00		608.5

Pension_and_Other_Postemployme1

Pension and Other Postemployment Benefits (Tables)	3 Months Ended
	Mar. 31, 2015
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost	Defined Benefit Pension Plans
	The components of net periodic benefit cost for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Service cost	$	1.2		$	1.7
	Interest cost	1.7			1.7
	Expected return on plan assets	(0.7		)	(0.7		)
	Amortization of prior service cost	1.1			1.1
	Amortization of actuarial (gains) losses	1.4			0.5
		$	4.7		$	4.3
Postemployment Arrangements [Member]
Components of Net Periodic Benefit Cost	Postemployment Arrangements
	The components of net periodic benefit cost for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Service cost	$	1.2		$	1
	Interest cost	1.1			1.1
	Amortization of prior service cost	0.8			0.5
	Amortization of actuarial (gains) losses	0.4			0.2
		$	3.5		$	2.8

Operating_Expenses_Tables

Operating Expenses (Tables)	3 Months Ended
	Mar. 31, 2015
Operating Expenses [Abstract]
Components of Operating Expenses	Operating expenses for the three months ended March 31, 2015 and 2014 were comprised of (in millions):
		2015		2014
	Salary and service costs	$	2,620.80	$	2,622.80
	Office and general expenses	470.7		496.7
		$	3,091.50	$	3,119.50
	For the three months ended March 31, 2014, we incurred $7.0 million of expenses in connection with the proposed merger with Publicis Groupe S.A.(“Publicis”), which were primarily comprised of professional fees. On May 8, 2014, the proposed merger with Publicis was terminated.

Supplemental_Cash_Flow_Data_Ta

Supplemental Cash Flow Data (Tables)	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Data [Abstract]
Change in Operating Capital	The change in operating capital for the three months ended March 31, 2015 and 2014 was (in millions):
		2015			2014
	(Increase) decrease in accounts receivable	$	467.3		$	627.4
	(Increase) decrease in work in process and other current assets	(332.1		)	(188.5		)
	Increase (decrease) in accounts payable	(697.8		)	(993.1		)
	Increase (decrease) in customer advances and other current liabilities	26.1			(51.4		)
	Change in other assets and liabilities, net	(23.0		)	(136.7		)
		$	(559.5	)	$	(742.3	)
	Income taxes paid	$	144.3		$	165.9
	Interest paid	$	35.2		$	41.6

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2015
Changes in Accumulated Other Comprehensive Income (Loss) [Abstract]
Changes in accumulated other comprehensive income (loss)	The changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2015 and 2014 were (in millions):
	2015	Unrealized			Unrealized			Defined Benefit Pension and Postemployment Plans			Foreign			Total
		Gain (Loss) on Cash Flow Hedge			Gain (Loss) on Available-for-Sale Securities						Currency Translation
	1-Jan	$	—		$	(1.2	)	$	(92.1	)	$	(524.9	)	$	(618.2	)
	Other comprehensive income (loss) before reclassifications	(2.5		)	0.2			—			(318.4		)	(320.7		)
	Amounts reclassified from accumulated other comprehensive income (loss)	—			—			2.2			—			2.2
	Other comprehensive income (loss)	(2.5		)	0.2			2.2			(318.4		)	(318.5		)
	31-Mar	$	(2.5	)	$	(1.0	)	$	(89.9	)	$	(843.3	)	$	(936.7	)
	2014
	1-Jan	$	—		$	(1.6	)	$	(68.8	)	$	(121.2	)	$	(191.6	)
	Other comprehensive income (loss) before reclassifications	—			0.1			—			20.4			20.5
	Amounts reclassified from accumulated other comprehensive income (loss)	—			—			1.4			—			1.4
	Other comprehensive income (loss)	—			0.1			1.4			20.4			21.9
	31-Mar	$	—		$	(1.5	)	$	(67.4	)	$	(100.8	)	$	(169.7	)
Reclassifications from accumulated other comprehensive income (loss)	Reclassifications from accumulated other comprehensive income (loss) for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	Amortization of defined benefit pension and postemployment plans:
	Prior service cost	$	1.9		$	1.6
	Actuarial (gains) losses	1.8			0.7
	Net periodic benefit cost (see Note 8)	3.7			2.3
	Income taxes	1.5			0.9
	Periodic benefit cost, net of income tax	$	2.2		$	1.4

Fair_Value_Tables

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value [Abstract]
Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	Financial assets and liabilities measured at fair value on a recurring basis at March 31, 2015 and December 31, 2014 were (in millions):
	2015	Level 1			Level 2			Level 3		Total
	Assets:
	Cash and cash equivalents	$	1,526.70							$	1,526.70
	Short-term investments	5.7								5.7
	Available-for-sale securities	5								5
	Interest rate and foreign currency derivative instruments				$	76.5				76.5
	Liabilities:
	Interest rate and foreign currency derivative instruments				$	4.9				$	4.9
	Contingent purchase price obligations							$	332.5	332.5
	2014
	Assets:
	Cash and cash equivalents	$	2,388.10							$	2,388.10
	Short-term investments	2.2								2.2
	Available-for-sale securities	4.9								4.9
	Interest rate and foreign currency derivative instruments				$	43.1				43.1
	Liabilities:
	Foreign currency derivative instruments				$	0.4				$	0.4
	Contingent purchase price obligations							$	300.7	300.7
Changes in Level 3 Contingent Purchase Price Obligations	The changes in Level 3 contingent purchase price obligations for the three months ended March 31, 2015 and 2014 were (in millions):
		2015			2014
	1-Jan	$	300.7		$	220.2
	Acquisitions	46.3			43.2
	Revaluation and interest	2.2			(0.8		)
	Payments	(1.8		)	(7.8		)
	Foreign currency translation	(14.9		)	2
	31-Mar	$	332.5		$	256.8
Carrying Amounts and Fair Value of Financial Instruments	The carrying amount and fair value of our financial instruments at March 31, 2015 and December 31, 2014 were (in millions):
		2015						2014
		Carrying			Fair			Carrying		Fair
		Amount			Value			Amount		Value
	Assets:
	Cash and cash equivalents	$	1,526.70		$	1,526.70		$	2,388.10	$	2,388.10
	Short-term investments	5.7			5.7			2.2		2.2
	Available-for-sale securities	5			5			4.9		4.9
	Interest rate and foreign currency derivative instruments	76.5			76.5			43.1		43.1
	Cost method investments	20.8			20.8			21.8		21.8
	Liabilities:
	Short-term borrowings	$	9.6		$	9.6		$	7.2	$	7.2
	Interest rate and foreign currency derivative instruments	4.9			4.9			0.4		0.4
	Contingent purchase price obligations	332.5			332.5			300.7		300.7
	Debt	4,594.10			4,820.90			4,563.00		4,754.90

Net_Income_Per_Common_Share_De

Net Income Per Common Share (Details) (USD $)	3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Income Available for Common Shares:
Net income - Omnicom Group Inc.	$209.10	$205.50
Net income allocated to participating securities	2.8	4.1
Net income available for common shares	$206.30	$201.40
Weighted Average Shares:
Basic	246.4	259.1
Dilutive stock options and restricted shares	1	2.3
Diluted	247.4	261.4
Anti-dilutive stock options and restricted shares	0.1	0.1
Net Income per Common Share - Omnicom Group Inc.:
Basic	$0.84	$0.78
Diluted	$0.83	$0.77

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Goodwill, Gross Carrying Value	$9,170.60		$9,377.60
Goodwill, Accumulated Amortization	-530.8		-555.4
Goodwill, Net Carrying Value	8,639.80	8,986.70
Intangible assets:, Gross Carrying Value	987.6		1,000.80
Intangible assets:, Accumulated Amortization	-620.4		-611.4
Intangible assets:, Net Carrying Value	367.2		389.4
Goodwill [Roll Forward]
Goodwill, January 1	8,822.20	8,916
Goodwill, Acquisitions	65.1	51.4
Goodwill, Dispositions	-0.3	-1.2
Goodwill, Foreign currency translation	-247.2	20.5
Goodwill, March 31	8,639.80	8,986.70
Goodwill, impairment losses	0
Goodwill, accumulated impairment losses	0
Goodwill, acquisitions of noncontrolling interests	1.8	10.9
Purchased and internally developed software
Intangible assets:, Gross Carrying Value	296.5		298.7
Intangible assets:, Accumulated Amortization	-222.1		-221.4
Intangible assets:, Net Carrying Value	74.4		77.3
Customer related and other
Intangible assets:, Gross Carrying Value	691.1		702.1
Intangible assets:, Accumulated Amortization	-398.3		-390
Intangible assets:, Net Carrying Value	$292.80		$312.10

Debt_Details

Debt (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Lines of Credit [Abstract]
Available and unused credit lines	$3,408,900,000	$3,437,800,000
Short-Term Borrowings [Abstract]
Short-term borrowings	9,600,000	7,200,000
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	4,500,300,000	4,500,500,000
Unamortized premium (discount) on Senior Notes, net	10,900,000	11,100,000
Adjustment to carrying value for interest rate swaps	82,900,000	51,400,000
Long-term notes payable, total	4,594,100,000	4,563,000,000
Long-term notes payable, current portion	-300,000	-400,000
Long-Term Notes Payable	4,593,800,000	4,562,600,000
Interest rate swaps, fair value	76,000,000	42,700,000
Credit Agreement expiring July 31, 2019 [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,500,000,000
Credit Agreement, expiration date	31-Jul-19
Available and unused credit lines	2,500,000,000	2,500,000,000
Credit Agreement, covenant terms	The Credit Agreement contains financial covenants that require us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA of no more than 3 times for the most recently ended 12-month period (under the Credit Agreement, EBITDA is defined as earnings before interest, taxes, depreciation and amortization) and an Interest Coverage Ratio of consolidated EBITDA to interest expense of at least 5 times for the most recently ended 12-month period.
Credit Agreement, covenant compliance	At March 31, 2015, we were in compliance with these covenants, as our Leverage Ratio was 2.0 times and our Interest Coverage Ratio was 12.9 times.
Credit Agreement expiring July 31, 2019 [Member] | Commercial Paper [Member]
Lines of Credit [Abstract]
Credit Agreement, maximum borrowing capacity	2,000,000,000
Uncommitted lines of credit [Member]
Lines of Credit [Abstract]
Available and unused credit lines	908,900,000	937,800,000
5.9% Senior Notes due 2016
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,000,000,000	1,000,000,000
Interest rate	5.90%
Maturity date	15-Apr-16
6.25% Senior Notes due 2019
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	500,000,000	500,000,000
Interest rate	6.25%
Maturity date	15-Jul-19
4.45% Senior Notes due 2020
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,000,000,000	1,000,000,000
Interest rate	4.45%
Maturity date	15-Aug-20
3.625% Senior Notes due 2022
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	1,250,000,000	1,250,000,000
Interest rate	3.63%
Maturity date	1-May-22
3.65% Senior Notes due 2024
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	750,000,000	750,000,000
Interest rate	3.65%
Maturity date	1-Nov-24
Other notes and loans
Long-Term Notes Payable [Abstract]
Long-term notes payable, carrying amount	300,000	500,000
Interest Rate Swaps on 2022 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, hedged amount	1,250,000,000
Interest Rate Swaps on 2020 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, hedged amount	$1,000,000,000
LIBOR [Member] | Interest Rate Swaps on 2022 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, spread	1.05%
LIBOR [Member] | Interest Rate Swaps on 2020 Notes [Member]
Long-Term Notes Payable [Abstract]
Interest rate swaps, spread	2.16%

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue	$3,469.20	$3,502.20
Americas
Revenue	2,151	2,081.30
Long-lived assets and goodwill	6,136.30	6,101.20
UNITED STATES
Revenue	1,958.20	1,871.80
EMEA
Revenue	961.4	1,061.60
Long-lived assets and goodwill	2,635.60	3,009
Asia Pacific
Revenue	356.8	359.3
Long-lived assets and goodwill	$549.40	$608.50

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	Rate	Rate
Income Taxes [Abstract]
Effective tax rate	32.80%	33.80%
Unrecognized tax benefits	$134.70
Unrecognized tax benefits that would impact effective tax rate	$57.10

Pension_and_Other_Postemployme2

Pension and Other Postemployment Benefits (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Defined Benefit Pension Plans [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$1.20	$1.70
Interest cost	1.7	1.7
Expected return on plan assets	-0.7	-0.7
Amortization of prior service cost	1.1	1.1
Amortization of actuarial (gains) losses	1.4	0.5
Net periodic benefit cost	4.7	4.3
Defined benefit pension plans, contributions by employer	0.4	0.2
Postemployment Arrangements [Member]
Components of Net Periodic Benefit Cost [Abstract]
Service cost	1.2	1
Interest cost	1.1	1.1
Amortization of prior service cost	0.8	0.5
Amortization of actuarial (gains) losses	0.4	0.2
Net periodic benefit cost	$3.50	$2.80

Operating_Expenses_Details

Operating Expenses (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Expenses [Abstract]
Salary and service costs	$2,620.80	$2,622.80
Office and general expenses	470.7	496.7
Operating expenses	3,091.50	3,119.50
Merger expenses		$7

Supplemental_Cash_Flow_Data_De

Supplemental Cash Flow Data (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Change in Operating Capital [Abstract]
(Increase) decrease in accounts receivable	$467.30	$627.40
(Increase) decrease in work in process and other current assets	-332.1	-188.5
Increase (decrease) in accounts payable	-697.8	-993.1
Increase (decrease) in customer advances and other current liabilities	26.1	-51.4
Change in other assets and liabilities, net	-23	-136.7
Change in operating capital	-559.5	-742.3
Income taxes paid	144.3	165.9
Interest paid	$35.20	$41.60

Changes_in_Accumulated_Other_C2

Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
1-Jan	($618,200,000)	($191,600,000)
Other comprehensive income (loss) before reclassifications	-320,700,000	20,500,000
Amounts reclassified from accumulated other comprehensive income (loss)	2,200,000	1,400,000
Other comprehensive income (loss)	-318,500,000	21,900,000
31-Mar	-936,700,000	-169,700,000
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Cash flow hedge liability, fair value	4,200,000
Unrealized Gain (Loss) on Cash Flow Hedge
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
1-Jan	0
Other comprehensive income (loss) before reclassifications	-2,500,000	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	-2,500,000	0
31-Mar	-2,500,000	0
Unrealized Gain (Loss) on Available-for-Sale Securities
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
1-Jan	-1,200,000	-1,600,000
Other comprehensive income (loss) before reclassifications	200,000	100,000
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	200,000	100,000
31-Mar	-1,000,000	-1,500,000
Defined Benefit Pension and Postemployment Plans
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
1-Jan	-92,100,000	-68,800,000
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	2,200,000	1,400,000
Other comprehensive income (loss)	2,200,000	1,400,000
31-Mar	-89,900,000	-67,400,000
Defined Benefit Pension and Postemployment Plans | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Prior service cost	1,900,000	1,600,000
Actuarial (gains) losses	1,800,000	700,000
Net periodic benefit cost (see Note 8)	3,700,000	2,300,000
Income taxes	1,500,000	900,000
Periodic benefit cost, net of income tax	2,200,000	1,400,000
Foreign Currency Translation
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
1-Jan	-524,900,000	-121,200,000
Other comprehensive income (loss) before reclassifications	-318,400,000	20,400,000
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Other comprehensive income (loss)	-318,400,000	20,400,000
31-Mar	-843,300,000	-100,800,000
Cash Flow Hedge [Member]
Reclassification out of Accumulated Other Comprehensive Income [Abstract]
Cash flow hedge, notional amount	$1,000,000,000
Cash flow hedge, fixed interest rate	2.32%
Cash flow hedge, inception date	26-Mar-15
Cash flow hedge, maturity date	2-May-16

Fair_Value_Details

Fair Value (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Assets:
Cash and cash equivalents	$1,526.70		$2,388.10
Short-term investments	5.7		2.2
Available-for-sale securities	5		4.9
Interest rate and foreign currency derivative instruments	76.5		43.1
Cost method investments	20.8		21.8
Liabilities:
Short-term borrowings	9.6		7.2
Interest rate and foreign currency derivative instruments	4.9		0.4
Contingent purchase price obligations	332.5		300.7
Debt	4,820.90		4,754.90
Carrying Amount
Assets:
Cash and cash equivalents	1,526.70		2,388.10
Short-term investments	5.7		2.2
Available-for-sale securities	5		4.9
Interest rate and foreign currency derivative instruments	76.5		43.1
Cost method investments	20.8		21.8
Liabilities:
Short-term borrowings	9.6		7.2
Interest rate and foreign currency derivative instruments	4.9		0.4
Contingent purchase price obligations	332.5		300.7
Debt	4,594.10		4,563
Contingent purchase price obligations
Changes in Level 3 Contingent Purchase Price Obligations [Roll Forward]
1-Jan	300.7	220.2
Acquisitions	46.3	43.2
Revaluation and interest	-2.2	0.8
Payments	-1.8	-7.8
Foreign currency translation	-14.9	2
31-Mar	332.5	256.8
Fair Value, Measurements, Recurring [Member]
Assets:
Cash and cash equivalents	1,526.70		2,388.10
Short-term investments	5.7		2.2
Available-for-sale securities	5		4.9
Interest rate and foreign currency derivative instruments	76.5		43.1
Liabilities:
Foreign currency derivative instruments			0.4
Interest rate and foreign currency derivative instruments	4.9
Contingent purchase price obligations	332.5		300.7
Fair Value, Measurements, Recurring [Member] | Level 1
Assets:
Cash and cash equivalents	1,526.70		2,388.10
Short-term investments	5.7		2.2
Available-for-sale securities	5		4.9
Fair Value, Measurements, Recurring [Member] | Level 2
Assets:
Interest rate and foreign currency derivative instruments	76.5		43.1
Liabilities:
Foreign currency derivative instruments			0.4
Interest rate and foreign currency derivative instruments	4.9
Fair Value, Measurements, Recurring [Member] | Level 3
Liabilities:
Contingent purchase price obligations	$332.50		$300.70