Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation [Abstract]

Stock-Based Compensation

	Three Months				Nine Months
	2011		2010		2011		2010
Stock option expense	$	6.0	$	5.8	$	17.6	$	16.0
Restricted stock and unit awards expense		17.3		15.7		46.3		28.2
Total stock-based compensation expense	$	23.3	$	21.5	$	63.9	$	44.2