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, 2015	$ 8,399		$ 1	$ (2,443)	$ 6,485	$ (66)	$ 2,822	$ 1,600
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,025						1,679	346
Currency translation adjustment	(54)					(53)		(1)
Exercise of stock options	17				14			3
Tax benefit (shortfall) from stock-based compensation	(11)				(11)
Conversion of equity awards to liability awards	(2)				(1)			(1)
Stock-based compensation	34				29			5
Dividends declared	(2,922)						(2,288)	(634)
Ending 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	[1]					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	(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
Conversion of equity awards to liability awards	0
Stock-based compensation	30				26			4
Repurchase of common stock	(905)			(905)
Dividends declared	(2,979)						(2,352)	(627)
Ending balance at Dec. 31, 2018	$ 6,745		$ 1	$ (3,727)	$ 6,680	$ (40)	$ 2,770	$ 1,061

[1] The information for 2017 has been reclassified to conform to the current presentation.