Common Stock And Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Common Stock And Share-Based Compensation [Abstract]

Weighted Average Assumptions Used To Estimate The Fair Value Of Grants Issued

	Year Ended December 31
	2011		2010		2009
Expected volatility		41%		34%		33%
Expected dividend yield		0%		0%		0%
Expected option term		5 years		5 years		4.75 years
Risk-free rate of return		1.32 to 2.30%		1.26 to 2.59%		1.65 to 2.66%

Summary Of Stock Option Activity

	Options		Weighted Average     Exercise Price		Weighted Average     Contractual Life		Aggregate Intrinsic     Value
Options outstanding at January 1, 2011		21,523,733	$	20.20
Granted		1,869,603		10.35
Forfeited and cancelled(1)		(3,076,382)		22.40
Exercised		(688,754)		10.00
Options outstanding at December 31, 2011		19,628,200		19.27		4.54	$	1,811,169
Options vested and expected to vest at December 31, 2011		19,521,233		19.32		4.52	$	1,738,374
Options exercisable at December 31, 2010		17,209,000		20.60
Options exercisable at December 31, 2011		16,263,080		20.46		3.74	$	216,020

(1) Pursuant to the terms of our stock option plans, options that are forfeited or cancelled may be available for future grants.

Summary Of Options Outstanding And Exercisable

	Options Outstanding						Options Exercisable
Range of Exercise Prices	Number     Outstanding		Weighted-Average Remaining     Contractual Life		Weighted-Average     Exercise Price		Number     Exercisable		Weighted-Average     Exercise Price
$ 7.44 to 10.35		2,003,602		9.07	$	10.29		201,830	$	10.14
10.38 to 14.24		2,136,522		0.29		12.16		2,116,544		12.17
14.25 to 14.56		3,079,206		3.71		14.37		2,354,685		14.31
15.99 to 18.30		2,996,206		2.68		18.04		2,935,462		18.05
18.69 to 19.98		379,782		4.80		19.58		354,520		19.59
20.07		2,315,690		6.99		20.07		1,596,922		20.07
20.19 to 25.37		2,373,603		5.47		24.74		2,359,528		24.76
25.39 to 25.68		2,064,708		4.00		25.66		2,064,708		25.66
25.81 to 30.11		2,037,436		5.09		29.58		2,037,436		29.58
30.64 to 31.90		241,445		5.33		31.34		241,445		31.34

Additional Information On Stock Option Activity

		December 31		December 31		December 31
	Year Ended December 31
	2011		2010		2009
Weighted-average grant date fair value of options granted	$	3.96	$	4.68	$	6.26
Intrinsic value of options exercised		1,198		2,507		8,486
Fair value of shares vested		16,182		21,972		24,142
Tax benefit related to stock option expense		4,463		6,135		8,197

Summary Of Restricted Stock Unit Activity

	Employees		Directors		Total
Stock units outstanding January 1, 2011		2,648,843		70,386		2,719,229
Stock units issued		865,735		53,792		919,527
Shares issued		(710,293)		(21,797)		(732,090)
Stock units cancelled or forfeited(1)		(607,835)		—		(607,835)
Stock units outstanding at December 31, 2011		2,196,450		102,381		2,298,831
Weighted average grant date fair value	$	15.02	$	11.83	$	14.90

(1) Pursuant to the terms of our stock unit plans, employees have the option of forfeiting stock units to cover their minimum statutory tax withholding when shares are issued. Stock units that are cancelled or forfeited may be available for future grants.

Stock Unit Grants And Stock Unit Expense

		December 31		December 31		December 31
	Year Ended December 31
	2011		2010		2009
Weighted-average grant date fair value of stock units granted	$	10.33	$	18.43	$	19.78
Tax benefit related to stock unit expense		5,910		6,256		5,156

Summary Of Restricted Stock Activity

	Shares			Weighted- Average Grant     Date Fair Value
Nonvested at January 1, 2011		64,074		$	11.92
Restricted shares granted		69,611			10.44
Restricted shares vested		(61,421	)		11.99
Restricted shares forfeited		—			—
Nonvested at December 31, 2011		72,264			10.43

Summary Of Cash Performance Units Activity

	Units
Outstanding at January 1, 2011		10,812,001
Granted		2,593,750
Converted/paid		—
Forfeited		(1,550,667)
Outstanding at December 31, 2011		11,855,084

Summary Of Phantom Stock Shares Activity

		December 31		December 31
	Shares		Weighted-Average Grant Date Fair Value
Outstanding at January 1, 2011		—	$	—
Granted		1,195,673		10.36
Converted/paid		(5,332)		10.35
Forfeited		(108,673)		10.35
Outstanding at December 31, 2011		1,081,668		10.36

Summary Of Share-Based Compensation Expense Recognized

		December 31		December 31		December 31
	Year Ended December 31
	2011		2010		2009
Stock Options	$	11,800	$	16,243	$	22,288
Stock Units		19,608		20,629		17,109
Cash Performance Units		1,729		—		—
Phantom Shares		3,578		—		—