Earnings Per Share (Narrative) (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Effect of dilutive securities	1,519,000	[1]	4,229,000	[1]	2,447,000	[1]
Dilutive shares	262,803,000	[1]	238,867,000	[1]	263,697,000	[1]	234,555,000	[1]
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options, weighted average exercise price	$ 24.34		$ 26.61		$ 25.91		$ 26.65
Shares were excluded from computation of earnings per share	10,700,000		11,700,000		10,100,000		12,500,000
Other Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares were excluded from computation of earnings per share	1,100,000		300,000		300,000		3,400,000
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
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.