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, 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		194	0	0	192	0	2
Foreign currency translation, net of tax		147	0	0	0	147	0
Pension and other postretirement benefits, net of tax		4	0	0	0	4	0
Derivative financial instruments, net of tax		50	0	0	0	50	0
Available-for-sale securities, net of tax		11	0	0	0	11	0
Distribution to noncontrolling interests		(6)	0	0	0	0	(6)
Common shares issued from treasury stock for stock-based compensation: 3,426,757 and 2,604,284 for the three months ended March 31, 2018 and 2017, respectively		(19)	(106)	87	0	0	0
Stock-based compensation expense		49	49	0	0	0	0
Other		2	2	0	0	0	0
Balance at Mar. 31, 2017		13,660	5,222	(17,391)	27,584	(1,827)	72
Balance at Dec. 31, 2017		13,766	5,593	(17,005)	26,301	(1,192)	69
Increase (Decrease) in Shareholders' Equity
Adjustment to adopt stock-based compensation guidance | Revenue recognition		(12)	0	0	(12)	0	0
Adjustment to adopt stock-based compensation guidance | Tax accounting for intra-entity asset transfers		(35)	0	0	(35)	0	0
Adjustment to adopt stock-based compensation guidance | Recognition and measurement of financial assets and liabilities		0	0	0	11	(11)	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 Shareholders' Equity
Profit of consolidated and affiliated companies		1,667	0	0	1,665	0	2
Profit of consolidated and affiliated companies | Revenue recognition		4
Foreign currency translation, net of tax		184	0	0	0	184	0
Pension and other postretirement benefits, net of tax		(9)	0	0	0	(9)	0
Derivative financial instruments, net of tax		23	0	0	0	23	0
Available-for-sale securities, net of tax		(11)	0	0	0	(11)	0
Change in Ownership for Noncontrolling Interests		(3)	2	0	0	0	(5)
Dividends declared		(1)	0	0	(1)	0	0
Common shares issued from treasury stock for stock-based compensation: 3,426,757 and 2,604,284 for the three months ended March 31, 2018 and 2017, respectively		149	(9)	158	0	0	0
Stock-based compensation expense		50	50	0	0	0	0
Common shares repurchased: 3,147,629 and 0 for the three months ended March 31, 2018 and 2017, respectively	[1]	(500)	0	(500)	0	0	0
Other		4	4	0	0	0	0
Balance at Mar. 31, 2018		$ 15,272	$ 5,640	$ (17,347)	$ 27,929	$ (1,016)	$ 66

[1] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjBlYTI0NjJjYTg1NzRjNGFhZjE0NzNiZDgwZTIzYzkyfFRleHRTZWxlY3Rpb246OTdDMDEyQ0I2Nzg2NTVCNUIxNzhGRTAzNkFDMjcwN0IM}