Changes in Consolidated Shareholders' Equity - USD ($) $ in Millions		Total	Common Stock	Treasury stock	Profit employed in the business	Accumulated other comprehensive income (loss)	Noncontrolling interests
Balance at Dec. 31, 2015		$ 14,885	$ 5,238	$ (17,640)	$ 29,246	$ (2,035)	$ 76
Increase (Decrease) in Stockholders' Equity
Profit (loss) of consolidated and affiliated companies		(59)	0	0	(67)	0	8
Foreign currency translation, net of tax		(17)	0	0	0	(17)	0
Pension and other postretirement benefits, net of tax		83	0	0	0	83	0
Derivative financial instruments, net of tax		(65)	0	0	0	(65)	0
Available-for-sale securities, net of tax		(5)	0	0	0	(5)	0
Change in ownership from noncontrolling interests		0	(2)	0	0	0	2
Dividends declared		(1,802)	0	0	(1,802)	0	0
Distribution to noncontrolling interests		(10)	0	0	0	0	(10)
Common shares issued from treasury stock for stock-based compensation: 5,590,641, 11,139,748, and 4,164,134 for the years ended December 31, 2018, 2017 and 2016 respectively		(23)	(185)	162	0	0	0
Stock-based compensation expense		218	218	0	0	0	0
Net excess tax benefits(deficiencies) from stock-based compensation		(6)	(6)	0	0	0	0
Other		14	(14)	0	0	0	0
Balance at Dec. 31, 2016		13,213	5,277	(17,478)	27,377	(2,039)	76
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		15	0	0	15	0	0
Balance at Jan. 01, 2017		13,228	5,277	(17,478)	27,392	(2,039)	76
Balance at Dec. 31, 2016		13,213	5,277	(17,478)	27,377	(2,039)	76
Increase (Decrease) in Stockholders' Equity
Profit (loss) of consolidated and affiliated companies		759	0	0	754	0	5
Foreign currency translation, net of tax		765	0	0	0	765	0
Pension and other postretirement benefits, net of tax		32	0	0	0	32	0
Derivative financial instruments, net of tax		74	0	0	0	74	0
Available-for-sale securities, net of tax		(24)	0	0	0	(24)	0
Change in ownership from noncontrolling interests		1	4	0	0	0	(3)
Dividends declared		(1,845)	0	0	(1,845)	0	0
Distribution to noncontrolling interests		(9)	0	0	0	0	(9)
Common shares issued from treasury stock for stock-based compensation: 5,590,641, 11,139,748, and 4,164,134 for the years ended December 31, 2018, 2017 and 2016 respectively		566	93	473	0	0	0
Stock-based compensation expense		206	206	0	0	0	0
Other		13	(13)	0	0	0	0
Balance at Dec. 31, 2017		13,766	5,593	(17,005)	26,301	(1,192)	69
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2016-16		(35)	0	0	(35)	0	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2016-01		0	0	0	11	(11)	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Accounting Standards Update 2014-09		(12)	0	0	(12)	0	0
Balance at Jan. 01, 2018		13,719	5,593	(17,005)	26,265	(1,203)	69
Balance at Dec. 31, 2017		13,766	5,593	(17,005)	26,301	(1,192)	69
Increase (Decrease) in Stockholders' Equity
Profit (loss) of consolidated and affiliated companies		6,148	0	0	6,147	0	1
Profit (loss) of consolidated and affiliated companies | Accounting Standards Update 2014-09		19
Foreign currency translation, net of tax		(396)	0	0	0	(396)	0
Pension and other postretirement benefits, net of tax		(34)	0	0	0	(34)	0
Derivative financial instruments, net of tax		(39)	0	0	0	(39)	0
Available-for-sale securities, net of tax		(12)	0	0	0	(12)	0
Change in ownership from noncontrolling interests		(53)	(25)	0	0	0	(28)
Dividends declared		(1,985)	0	0	(1,985)	0	0
Distribution to noncontrolling interests		(1)	0	0	0	0	(1)
Common shares issued from treasury stock for stock-based compensation: 5,590,641, 11,139,748, and 4,164,134 for the years ended December 31, 2018, 2017 and 2016 respectively		313	41	272	0	0	0
Stock-based compensation expense		197	197	0	0	0	0
Common shares repurchased: 27,673,675, 0 and 0 shares for years ended December 31, 2018, 2017 and 2016, respectively	[1]	(3,798)	0	(3,798)	0	0	0
Other		(21)	21	0	0	0	0
Balance at Dec. 31, 2018		$ 14,080	$ 5,827	$ (20,531)	$ 30,427	$ (1,684)	$ 41

[1] 2