Stock-Based Incentive Plan (Tables)

3 Months Ended

Mar. 31, 2012

Stock-Based Incentive Plan [Abstract]

Stock Option Activity

	Number of Shares Under Option			Weighted Average Exercise Price per Share
Outstanding at December 31, 2011		23,599,256		$	17.42
Options granted		1,971,921			23.28
Options exercised		(1,237,551	)		13.88
Options forfeited		(194,352	)		19.81
Outstanding at March 31, 2012		24,139,274		$	18.06
Vested and expected to vest at March 31, 2012		23,065,876		$	17.93
Options exercisable at March 31, 2012		16,507,855		$	16.64

Status Of Company's Nonvested Restricted Stock And Restricted Stock Unit Awards And Changes

	Number of Restricted Stock Awards			Weighted  Average Grant-Date Fair Value per Share
Nonvested at December 31, 2011		2,520,487		$	20.16
Granted		864,640			23.44
Released		(731,356	)		15.71
Forfeited		(39,641	)		22.43
Nonvested at March 31, 2012		2,614,130		$	22.46