Supplementary Data (Tables)

6 Months Ended

Jun. 30, 2012

Supplementary Data [Abstract]

Accrued Liabilities

The following table presents the components of accrued liabilities.

	June 30, 2012		December 31, 2011
Salaries, benefits and related expenses	$	349.8	$	520.6
Office and related expenses	46.6		57.9
Acquisition obligations	15.1		43.7
Interest	39.0		40.3
Professional fees	21.8		25.3
Other	121.6		139.3
Total accrued liabilities	$	593.9	$	827.1

Other Income (Expense), net

Results of operations for the three and six months ended June 30, 2012 and 2011 include certain items that are not directly associated with our revenue-producing operations.

	Three months ended June 30,				Six months ended June 30,
	2012		2011		2012			2011
Gains (losses) on sales of businesses and investments	$	1.6	$	0.3	$	(1.8	)	$	(6.2	)
Vendor discounts and credit adjustments	2.5		2.8		4.9			2.9
Other income, net	0.6		2.2		0.3			2.5
Total other income (expense), net	$	4.7	$	5.3	$	3.4		$	(0.8	)

Share Repurchase Program

The following table presents our share repurchase activity under our share repurchase programs.

	Six months ended June 30,
	2012		2011
Number of shares repurchased	11.0		12.0
Aggregate cost, including fees	$	118.1	$	139.0
Average price per share, including fees	$	10.78	$	11.61