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]	ASU 2016-16 Income Taxes [Member] Reinvested Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (7)					$ (7)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	17,174		$ 17,437
Balance at Dec. 31, 2016	17,181	$ 2,327	17,444	$ (2,598)	$ 8
Balance, shares at Dec. 31, 2016		573
Comprehensive income
Net earnings	1,602		1,595		7
Other comprehensive income (loss)	963			961	2
Total comprehensive income	$ 2,565
Common Stock, Dividends, Per Share, Cash Paid	$ 1.28
Cash dividends paid	$ (730)		(730)
Treasury stock purchases, shares		(18)
Treasury stock purchases	(750)		(750)
Stock compensation expense	66	$ 66
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		1
Other	(3)	$ 5			(8)
Other, shares		1
Balance at Dec. 31, 2017	18,322	$ 2,398	17,552	(1,637)	9
Balance, shares at Dec. 31, 2017		557
Comprehensive income
Net earnings	1,815		1,810		5
Other comprehensive income (loss)	(469)			(469)
Total comprehensive income	$ 1,346
Common Stock, Dividends, Per Share, Cash Paid	$ 1.34
Cash dividends paid	$ (758)		(758)
Stock Repurchased During Period, Shares		(2)
Stock Repurchased During Period, Value	(77)		(77)
Stock compensation expense	109	$ 109
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		2
Other	54	$ 53			1
Other, shares		2
Balance at Dec. 31, 2018	18,996	$ 2,560	18,527	(2,106)	15
Balance, shares at Dec. 31, 2018		559
Comprehensive income
Net earnings	1,379		1,379
Other comprehensive income (loss)	(297)			(299)	2
Total comprehensive income	$ 1,082
Common Stock, Dividends, Per Share, Cash Paid	$ 1.40
Cash dividends paid	$ (789)		(789)
Stock Repurchased During Period, Shares		(4)
Stock Repurchased During Period, Value	(150)		(150)
Stock compensation expense	89	$ 89
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		2
Other	(3)	$ 6	(9)
Other, shares
Balance at Dec. 31, 2019	$ 19,225	$ 2,655	$ 18,958	$ (2,405)	$ 17
Balance, shares at Dec. 31, 2019		557