Common Stock And Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Compensation Expense For Share-Based Incentive Awards

		000000000		000000000		000000000
(in millions)	2011		2010		2009
Restricted stock units		$  22		$  9		$  11
Restricted stock		1		14		9
Performance shares:
Liability awards		(13)		22		37
Equity awards		16		11		-
Total compensation expense (pre-tax)		$  26		$  56		$  57
Total compensation expense (after-tax)		$  16		$  33		$  34

Schedule Of Restricted Stock Units Activity

	Number of Restricted Stock Units	Weighted Average Grant- Date Fair Value
Nonvested at January 1	1,154,396	$  39.74
Granted	841,122	$  45.10
Vested	(280,937)	$  39.72
Forfeited	(88,533)	$  42.60
Nonvested at December 31	1,626,048	$  42.57

Schedule Of Restricted Stock Activity

	Number of Shares of Restricted Stock	Weighted Average Grant- Date Fair Value
Nonvested at January 1	475,880	$  40.87
Granted	-
Vested	(312,539)	$  38.08
Forfeited	(3,585)	$  46.04
Nonvested at December 31	159,756	$  46.49

Performance Shares, Equity Awards [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Nonvested Performance-Based Units Activity

	Number of Performance Shares	Weighted Average Grant- Date Fair Value
Nonvested at January 1	609,970	$  35.60
Granted	774,125	$  33.91
Vested	-
Forfeited	(58,689)	$  34.95
Nonvested at December 31	1,325,406	$  34.64

Performance Shares, Liability Awards [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule Of Nonvested Performance-Based Units Activity

	Number of Performance Shares	Weighted Average Fair Value
Nonvested at January 1	1,137,490	$  60.37
Granted	-
Vested	(516,411)	$  95.47
Forfeited	(22,716)	$  11.34
Nonvested at December 31	598,363	$  0.00