CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Other Comprehensive Income (Loss)	Retained Earnings [Member]	Noncontrolling Interests [Member]
Beginning balance at Dec. 31, 2016	$ 7,486	$ 1	$ (2,443)	$ 6,516	$ (119)	$ 2,213	$ 1,318
Cumulative effect adjustment from change in accounting principle (Accounting Standards Update 2016-09 [Member]) at Dec. 31, 2016				3		(2)	(1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,263					2,808	455
Currency translation adjustment	125				133		(8)
Exercise of stock options	40			35			5
Conversion of equity awards to liability awards	(4)			(3)			(1)
Stock-based compensation	34			29			5
Repurchase of common stock	(375)		(375)
Dividends declared and noncontrolling interest payments	(2,942)					(2,310)	(632)
Ending balance at Dec. 31, 2017	7,627	1	(2,818)	6,580	14	2,709	1,141
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,951					2,413	538
Currency translation adjustment	(58)				(54)		(4)
Exercise of stock options	79		(4)	74			9
Stock-based compensation	30			26			4
Repurchase of common stock	(905)		(905)
Dividends declared and noncontrolling interest payments	(2,979)					(2,352)	(627)
Ending balance at Dec. 31, 2018	6,745	1	(3,727)	6,680	(40)	2,770	1,061
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,304					2,698	606
Currency translation adjustment	42				37		5
Exercise of stock options	54			43			11
Stock-based compensation	35			31			4
Disposition of interest in majority-owned subsidiary, net of taxes	81			(185)			266
Repurchase of common stock	(754)		(754)
Dividends declared and noncontrolling interest payments	(3,000)					(2,367)	(633)
Ending balance at Dec. 31, 2019	$ 6,507	$ 1	$ (4,481)	$ 6,569	$ (3)	$ 3,101	$ 1,320