Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Results of Operations (Unaudited) [Abstract]

Quarterly Results of Operations (Unaudited) [Text Block]

Quarterly Results of Operations (Unaudited)

(In millions, except per share amounts)

The Company’s unaudited quarterly results of operations for the years ended December 31, 2012 and 2011 were:

	Quarter
	First		Second		Third		Fourth
Revenue
2012	$	3,307.3	$	3,561.0	$	3,406.6	$	3,944.5
2011	3,151.3		3,487.4		3,380.9		3,852.9
Operating Expenses
2012	2,944.8		3,054.6		3,019.3		3,396.5
2011	2,829.2		2,999.3		3,007.5		3,365.5
Operating Income
2012	362.5		506.4		387.3		548.0
2011	322.1		488.1		373.4		487.4
Net Income - Omnicom Group Inc.
2012	204.6		282.7		203.9		307.1
2011	201.9		275.1		203.7		271.9
Net Income Per Share Omnicom Group Inc. - Basic
2012	0.73		1.03		0.75		1.13
2011	0.70		0.98		0.73		0.97
Net Income Per Share Omnicom Group Inc. - Diluted
2012	0.72		1.02		0.74		1.13
2011	0.69		0.96		0.72		0.96