Condensed Consolidated Statements Of Equity (USD $) In Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interest [Member]
Balance at Dec. 31, 2010	$ 2,862	$ 5,061	$ 3,866	$ (17,187)	$ 24,784	$ (13,758)	$ 96
Net earnings	1,522				1,527		(5)
Unrealized gain on derivative instruments, net of tax of ($26) in 2011 and $7 in 2012	45					45
Unrealized loss on certain investments, net of tax of $1	(2)					(2)
Reclassification adjustment for losses realized in net earnings, net of tax of $0 in 2011 and ($5) in 2012	(1)					(1)
Currency translation adjustments	99					99
Postretirement liability adjustment, net of tax of ($303) in 2011 and ($402) in 2012	522					522
Comprehensive income	2,185
Share-based compensation and related dividend equivalents	94		102		(8)
Excess tax pools	17		17
Treasury shares issued for stock options exercised, net	82		(28)	110
Treasury shares issued for other share-based plans, net	(10)		(44)	34
Treasury shares issued for 401(k) contribution	216		32	184
Cash dividends declared of $0.84 per share in 2011 and $0.88 per share in 2012	(622)				(622)
Balance at Jun. 30, 2011	4,824	5,061	3,945	(16,859)	25,681	(13,095)	91
Balance at Dec. 31, 2011	3,608	5,061	4,033	(16,603)	27,524	(16,500)	93
Net earnings	1,891				1,890		1
Unrealized gain on derivative instruments, net of tax of ($26) in 2011 and $7 in 2012	(12)					(12)
Reclassification adjustment for losses realized in net earnings, net of tax of $0 in 2011 and ($5) in 2012	8					8
Currency translation adjustments	(10)					(10)
Postretirement liability adjustment, net of tax of ($303) in 2011 and ($402) in 2012	698					698
Comprehensive income	2,575
Share-based compensation and related dividend equivalents	96		106		(10)
Excess tax pools	39		39
Treasury shares issued for stock options exercised, net	73		(31)	104
Treasury shares issued for other share-based plans, net	(62)		(166)	104
Treasury shares issued for 401(k) contribution	230		37	193
Cash dividends declared of $0.84 per share in 2011 and $0.88 per share in 2012	(661)				(661)
Changes in noncontrolling interest	(6)						(6)
Balance at Jun. 30, 2012	$ 5,892	$ 5,061	$ 4,018	$ (16,202)	$ 28,743	$ (15,816)	$ 88