Earnings Per Share (Narrative) (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Effect of dilutive securities	1,467,000	[1]	6,412,000	[1]	2,457,000	[1]
Dilutive shares	262,756,000	[1]	240,968,000	[1]	263,690,000	[1]	234,513,000	[1]
Stock Options [Member]
Stock options, weighted average exercise price	$ 24.44		$ 28.23		$ 26.12		$ 26.74
Shares were excluded from computation of earnings per share	10,800,000		10,900,000		10,200,000		12,800,000
Other Equity Awards [Member]
Shares were excluded from computation of earnings per share	400,000		300,000		200,000		3,500,000
Warrants [Member]
Shares were excluded from computation of earnings per share							14,800,000
Dilutive shares	0				900,000

[1] All share data has been restated to reflect stock dividends distributed through January 1, 2011.