Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenue	$ 3,502.2	$ 3,398.9
Operating Expenses	3,119.5	3,027.2
Operating Income	382.7	371.7
Interest Expense	47.7	49.0
Interest Income	8.7	8.1
Income Before Income Taxes and Income From Equity Method Investments	343.7	330.8
Income Tax Expense	116.3	109.2
Income From Equity Method Investments	0.6	3.2
Net Income	228.0	224.8
Net Income Attributed To Noncontrolling Interests	(22.5)	(19.7)
Net Income - Omnicom Group Inc.	$ 205.5	$ 205.1
Net Income Per Share - Omnicom Group Inc.:
Basic	$ 0.78	$ 0.76
Diluted	$ 0.77	$ 0.76
Dividends Declared Per Common Share	$ 0.40	$ 0.40