Consolidated Statement Of Shareholders' Equity (USD $) In Millions, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]
Balances at Dec. 31, 2008	$ 5,408	$ 40	$ 813	$ 4,390	$ 165
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,107			1,107
Unrealized gains/ loss on securities, including income tax benefit/ expense	2				2
Unfunded pension gains/ loss, net of income tax benefit/ expense	17				17
Foreign currency translation adjustments	74				74
Comprehensive earnings	1,200
Issuance of shares of common stock under stock option and benefit plans, including excess income tax benefit	25		25
Share-based compensation	62		62
Cash dividends declared of common stock	(99)			(99)
Balances at Dec. 31, 2009	6,596	40	900	5,398	258
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,273			1,273
Unrealized gains/ loss on securities, including income tax benefit/ expense	(2)				(2)
Unfunded pension gains/ loss, net of income tax benefit/ expense	(21)				(21)
Foreign currency translation adjustments	(81)				(81)
Comprehensive earnings	1,169
Issuance of shares of common stock under stock option and benefit plans, including excess income tax benefit	15		15
Share-based compensation	69		69
Cash dividends declared of common stock	(249)			(249)
Repurchased and retirement of common stock	(426)	(1)	(20)	(405)
Balances at Dec. 31, 2010	7,174	39	964	6,017	154
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,345			1,345
Unrealized gains/ loss on securities, including income tax benefit/ expense	(2)				(2)
Unfunded pension gains/ loss, net of income tax benefit/ expense	12				12
Foreign currency translation adjustments	(20)				(20)
Comprehensive earnings	1,335
Issuance of shares of common stock under stock option and benefit plans, including excess income tax benefit	13		13
Share-based compensation	75		75
Cash dividends declared of common stock	(292)			(292)
Repurchased and retirement of common stock	(622)	(1)	(30)	(591)
Balances at Dec. 31, 2011	$ 7,683	$ 38	$ 1,022	$ 6,479	$ 144