Consolidated Statement of Changes in 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 Shareholders' Equity
Profit of consolidated and affiliated companies	1,108	0	0	1,104	0	4
Foreign currency translation, net of tax	442	0	0	0	442	0
Pension and other postretirement benefits, net of tax	90	0	0	0	90	0
Derivative financial instruments, net of tax	(21)	0	0	0	(21)	0
Available-for-sale securities, net of tax	(3)	0	0	0	(3)	0
Dividends declared	(900)	0	0	(900)	0	0
Distribution to noncontrolling interests	(10)	0	0	0	0	(10)
Common shares issued from treasury stock for stock-based compensation: 8,447,558 and 2,750,695 for the nine months ended September 30, 2017 and 2016, respectively	(54)	(150)	96	0	0	0
Stock-based compensation expense	187	187	0	0	0	0
Net excess tax benefits from stock-based compensation	(18)	(18)	0	0	0	0
Other	9	9	0	0	0	0
Balance at Sep. 30, 2016	15,715	5,266	(17,544)	29,450	(1,527)	70
Balance at Dec. 31, 2016	13,213	5,277	(17,478)	27,377	(2,039)	76
Increase (Decrease) in Shareholders' Equity
Adjustment to adopt stock-based compensation guidance	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 Shareholders' Equity
Profit of consolidated and affiliated companies	2,058	0	0	2,053	0	5
Foreign currency translation, net of tax	719	0	0	0	719	0
Pension and other postretirement benefits, net of tax	(4)	0	0	0	(4)	0
Derivative financial instruments, net of tax	83	0	0	0	83	0
Available-for-sale securities, net of tax	8	0	0	0	8	0
Change in Ownership for Noncontrolling Interests	1	4	0	0	0	(3)
Dividends declared	(915)	0	0	(915)	0	0
Distribution to noncontrolling interests	(8)	0	0	0	0	(8)
Common shares issued from treasury stock for stock-based compensation: 8,447,558 and 2,750,695 for the nine months ended September 30, 2017 and 2016, respectively	353	5	348	0	0	0
Stock-based compensation expense	165	165	0	0	0	0
Other	9	9	0	0	0	0
Balance at Sep. 30, 2017	$ 15,697	$ 5,460	$ (17,130)	$ 28,530	$ (1,233)	$ 70