Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

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

	Three months ended June 30,						Six months ended June 30,
	2011			2010			2011			2010
Revenue:
IAN	$	1,471.7		$	1,363.2		$	2,707.6		$	2,472.4
CMG	269.0			248.5			507.9			476.3
Total	$	1,740.7		$	1,611.7		$	3,215.5		$	2,948.7
Segment operating income:
IAN	$	184.7		$	190.0		$	163.3		$	156.7
CMG	28.0			21.8			38.7			29.5
Corporate and other	(38.5		)	(34.0		)	(72.3		)	(67.5		)
Total	174.2			177.8			129.7			118.7
Restructuring and other reorganization-related charges, net	(0.2		)	(0.6		)	(1.0		)	(0.9		)
Interest expense	(33.1		)	(35.0		)	(65.0		)	(67.6		)
Interest income	9.7			6.1			18.0			12.6
Other income (expense), net	5.3			(2.1		)	(0.8		)	(1.6		)
Income before income taxes	$	155.9		$	146.2		$	80.9		$	61.2
Depreciation and amortization of fixed assets and intangible assets:
IAN	$	31.4		$	28.6		$	60.7		$	57.3
CMG	3.3			3.4			6.4			7.0
Corporate and other	3.0			4.8			6.2			9.9
Total	$	37.7		$	36.8		$	73.3		$	74.2
Capital expenditures:
IAN	$	22.8		$	15.7		$	36.8		$	24.3
CMG	2.9			1.6			4.2			1.9
Corporate and other	10.5			1.6			12.1			2.1
Total	$	36.2		$	18.9		$	53.1		$	28.3
	June 30, 2011			December 31, 2010
Total assets:
IAN	$	10,353.1		$	10,481.7
CMG	942.1			930.5
Corporate and other	1,006.4			1,658.6
Total	$	12,301.6		$	13,070.8