Earnings Per Share (Details Textuals) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	May 31, 2011	Dec. 31, 2010
Earnings Per Share (Textuals) [Abstract]
Excluded common stock equivalents					9,200,000
Stock issued during period		2,000,000	3,000,000	10,000,000	9,000,000
Treasury Stock, Shares, Acquired		30,000,000
Payments for Repurchase of Common Stock		$ 192,000,000		$ 192,000,000
Common Stock, Shares Authorized		2,000,000,000		2,000,000,000		145,000,000	2,000,000,000
Number of shares to be granted out of 2003 LTIP		0		0
Stock Repurchase Program, Authorized Amount	$ 1,000,000,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		37,000,000		37,000,000
Stock Options [Member]
Earnings Per Share (Textuals) [Abstract]
Excluded common stock equivalents		65,000,000	62,000,000	63,000,000	62,000,000