Consolidated Statements Of Stockholders' Equity (USD $) In Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Earnings [Member]	Treasury Stock [Member]	Total
Balance, at Dec. 31, 2009	$ 45	$ 6,527	$ 7,613	$ 1,385		$ 15,570
Balance, shares, at Dec. 31, 2009	447
Net earnings			1,898			1,898
Other comprehensive earnings (loss), net of tax				(89)		(89)
Stock option exercises		15				15
Common stock repurchased					(503)	(503)
Common stock retired	(1)	(437)			438
Common stock retired, shares	(7)
Common stock dividends			(142)			(142)
Share-based compensation		75				75
Share-based compensation tax benefits		6				6
Balance, at Jun. 30, 2010	44	6,186	9,369	1,296	(65)	16,830
Balance, shares, at Jun. 30, 2010	440
Balance, at Dec. 31, 2010	43	5,601	11,882	1,760	(33)	19,253
Balance, shares, at Dec. 31, 2010	432
Net earnings			3,159			3,159
Other comprehensive earnings (loss), net of tax				261		261
Stock option exercises		96				96
Stock option exercises, shares	2
Common stock repurchased					(1,285)	(1,285)
Common stock retired	(1)	(1,292)			1,293
Common stock retired, shares	(16)
Common stock dividends			(140)			(140)
Share-based compensation		72				72
Share-based compensation tax benefits		12				12
Balance, at Jun. 30, 2011	$ 42	$ 4,489	$ 14,901	$ 2,021	$ (25)	$ 21,428
Balance, shares, at Jun. 30, 2011	418