Consolidated Statements Of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Reinvested Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2013	$ 20,194	$ 6,136	$ 14,077	$ (57)	$ 38
Balance, shares at Dec. 31, 2013		659
Comprehensive income
Net earnings	2,253		2,248		5
Other comprehensive income (loss)	(1,185)			(1,184)	(1)
Total comprehensive income	1,068
Cash dividends paid	(624)		(624)
Treasury stock purchases	(1,183)	$ (1,183)
Treasury stock purchases, shares		(25)
Stock compensation expense	55	$ 55
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	(12)	(12)
Noncontrolling Interest, Increase from Business Combination	19				19
Other	113	$ 119			(6)
Other, shares		3
Balance at Dec. 31, 2014	19,630	$ 5,115	15,701	(1,241)	55
Balance, shares at Dec. 31, 2014		637
Comprehensive income
Net earnings	1,846		1,849		(3)
Other comprehensive income (loss)	(906)			(905)	(1)
Total comprehensive income	940
Cash dividends paid	(687)		(687)
Treasury stock purchases	(2,040)	$ (2,040)
Treasury stock purchases, shares		(43)
Stock compensation expense	79	$ 79
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		1
Other	(7)	$ 26	2		(35)
Other, shares		0
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	1,288		1,279		9
Other comprehensive income (loss)	(453)			(452)	(1)
Total comprehensive income	835
Cash dividends paid	(701)		(701)
Treasury stock purchases	(1,000)	$ (1,000)
Treasury stock purchases, shares		(25)
Stock compensation expense	74	$ 74
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		1
Other	58	$ 73	1		(16)
Other, shares		2
Balance at Dec. 31, 2016	$ 17,181	$ 2,327	$ 17,444	$ (2,598)	$ 8
Balance, shares at Dec. 31, 2016		573