Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2011

Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]

Summary Of Stock Option Activity

Shares in Millions Except Per Share Amounts	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Weighted Average Fair Value at Date of Grant (per share)
Outstanding and exercisable at January 1, 2011	5.7		$	31.66	1.1	$	12.16
Exercised	(0.2	)	11.67
Forfeited/cancelled	(2.3	)	41.99
Exercisable at September 30, 2011	3.2		$	25.98	0.9	10.17
Unvested at January 1, 2011	—		—
Granted	0.7		13.79		9.3	4.06
Forfeited/cancelled	—		13.76
Outstanding unvested at September 30, 2011	0.7		$	13.79	9.3	4.06
Outstanding at September 30, 2011	3.9		$	23.91	2.4	$	9.15

Fair Value Assumptions for Restricted Stock Awards

	September 30, 2010
Expected volatility	56%
Expected term (in years)	3.0
Risk-free interest rate	1.4%

Time-based Restricted Stock Units

Shares in Millions Except Per Share Amounts	Number of Shares		Weighted Average Fair Value at Date of Grant
Non-vested at December 31, 2010	1.9		$	10.76
Granted	1.0		13.76
Vested	(0.4	)	12.23
Forfeited	(0.3	)	11.10
Non-vested at September 30, 2011	2.2		$	11.74

Performance And Market-Based Restricted Stock-Units

Shares in Millions Except Per Share Amounts	Number of Shares		Weighted Average Fair Value at Date of Grant
Non-vested at December 31, 2010	2.2		$	9.79
Granted	0.5		13.77
Vested	(0.1	)	8.37
Forfeited	(0.8	)	11.26
Non-vested at September 30, 2011	1.8		$	10.31