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, 2012	$ 19,131	$ 6,134	$ 13,236	$ (450)	$ 211
Balance, shares at Dec. 31, 2012		659
Comprehensive income
Net earnings	1,354		1,342		12
Other comprehensive income (loss)	384			393	(9)
Total comprehensive income	1,738
Cash dividends paid	(501)		(501)
Treasury stock purchases	(101)	$ (101)
Treasury stock purchases, shares		(3)
Stock compensation expense	43	$ 43
Other	64	$ 60			4
Other, shares		3
Balance at Dec. 31, 2013	20,194	$ 6,136	14,077	(57)	38
Balance, shares at Dec. 31, 2013		659
Comprehensive income
Noncontrolling Interests Subject to Mandatorily Redeemable Instruments	(180)				(180)
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