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Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Share-Based Compensation [Abstract]

Share-based compensation expense


For the Years Ended December 31,		2011				2010				2009
Stock options		$	41.7			$	47.6			$	61.9
RSUs and other			18.8				14.4				13.4

Total expense, pre-tax			60.5				62.0				75.3
Tax benefit related to awards			(17.8	)			(16.2	)			(20.9	)

Total expense, net of tax		$	42.7			$	45.8			$	54.4

Summary of stock option activity

A summary of stock option activity for the year ended December 31, 2011 is as follows (options in thousands):


										Weighted
						Weighted				Average
						Average				Remaining				Intrinsic
						Exercise				Contractual				Value
		Stock Options				Price				Life				(in millions)
Outstanding at January 1, 2011			17,438			$	66.76
Options granted			1,617				60.07
Options exercised			(1,137	)			35.21
Options cancelled			(416	)			59.32
Options expired			(754	)			75.21

Outstanding at December 31, 2011			16,748			$	68.04				5.4			$	27.2

Vested or expected to vest as of December 31, 2011			16,224			$	68.40				5.3			$	26.0

Exercisable at December 31, 2011			12,608			$	71.30				4.5			$	16.5

Weighted averagefair value of the option granted

The following table presents information regarding the weighted average fair value for stock options granted, the assumptions used to determine fair value, and the intrinsic value of options exercised in the indicated year:


For the Years Ended December 31,		2011				2010				2009
Dividend yield			–	%			–	%			–	%
Volatility			26.1	%			26.3	%			41.6	%
Risk-free interest rate			2.2	%			2.8	%			1.7	%
Expected life (years)			6.1				5.9				5.4
Weighted average fair value of options granted		$	18.33			$	18.17			$	16.02
Intrinsic value of options exercised (in millions)		$	27.5			$	8.5			$	3.3

Summary of nonvested RSU activity

A summary of nonvested RSU activity for the year ended December 31, 2011 is as follows (in thousands):


						Weighted Average
						Grant Date
		RSUs				Fair Value
Outstanding at January 1, 2011			948			$	52.30
Granted			651				60.14
Vested			(195	)			48.18
Forfeited			(217	)			58.95

Outstanding at December 31, 2011			1,187				56.25

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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