Consolidated Statements Of Shareholders' Equity - 9 months ended Sep. 30, 2016 - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2015	$ 17,915	$ 3,180	$ 16,865	$ (2,146)	$ 16
Balance (shares) at Dec. 31, 2015		595
Comprehensive income
Net earnings	862		855		7
Other comprehensive income (loss)	(44)			(44)	0
Total comprehensive income	818
Cash dividends paid - $0.90 per share	(528)		(528)
Treasury stock purchases, shares		(19)
Treasury stock purchases	(754)	$ (754)
Stock compensation expense, shares		1
Stock compensation expense	58	$ 58
Other, shares		1
Other	47	$ 52	0	0	(5)
Balance at Sep. 30, 2016	$ 17,556	$ 2,536	$ 17,192	$ (2,190)	$ 18
Balance (shares) at Sep. 30, 2016		578