Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Share-Based Compensation [Abstract]

Share based payment award stock options valuation assumptions

Assumptions:	2011			2010			2009
Expected volatility		55.88	%		46.90	%		62.58	%
Risk-free rate		2.85	%		2.97	%		2.63	%
Expected term (in years)		6.25			6.25			6.25
Expected dividends		—			—			—

Stock options outstanding and stock option activity

	Number of Options (000)			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (millions)
Outstanding at January 1, 2011		4,457		$	25.40		7.35	$	17
Granted		662			18.99
Exercised		(31	)		7.86
Canceled		(34	)		28.03
Forfeited		(172	)		20.17
Outstanding at December 31, 2011		4,882		$	24.81		6.72	$	4
Exercisable at December 31, 2011		3,251		$	29.93		6.12	$	2
Vested or expected to vest at December 31, 2011		4,879		$	24.81		6.80	$	4

Restricted stock units

	Number of Shares (000)			Weighted Average Grant Date Fair Value
Nonvested at January 1, 2011		1,625		$	12.99
Granted		526			18.85
Vested		(423	)		12.80
Forfeited		(122	)		15.00
Nonvested at December 31, 2011		1,606		$	14.81

Expected fair value of performance share granted

Assumptions:	2011			2010			2009
Expected volatility		77.84	%		73.34	%		60.84	%
Risk-free rate		1.20	%		1.24	%		1.40	%
Expected term (in years)		2.89			2.89			2.89
Expected dividends		—			—			—

Nonvested performance shares

	Weighted Number of Shares (000)			Weighted Average Grant Date Fair Value
Nonvested at January 1, 2011		672		$	12.23
Granted		227			25.40
Vested		(293	)		8.94
Forfeited		(166	)		17.30
Nonvested at December 31, 2011		440		$	19.32