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		997	0	0	994	0	3
Foreign currency translation, net of tax		471	0	0	0	471	0
Derivative financial instruments, net of tax		76	0	0	0	76	0
Available-for-sale securities, net of tax		21	0	0	0	21	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		(6)	0	0	0	0	(6)
Common shares issued from treasury stock for stock-based compensation: 4,729,038 and 4,486,768 for the six months ended June 30, 2018 and 2017, respectively		83	(88)	171	0	0	0
Stock-based compensation expense, before tax (in dollars)		117	117	0	0	0	0
Other		6	6	0	0	0	0
Balance at Jun. 30, 2017		14,079	5,316	(17,307)	27,471	(1,471)	70
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		3,372	0	0	3,372	0	0
Profit of consolidated and affiliated companies | Revenue recognition		(4)
Foreign currency translation, net of tax		(227)	0	0	0	(227)	0
Pension and other postretirement benefits, net of tax		(16)	0	0	0	(16)	0
Derivative financial instruments, net of tax		(37)	0	0	0	(37)	0
Available-for-sale securities, net of tax		(13)	0	0	0	(13)	0
Change in Ownership for Noncontrolling Interests		(3)	2	0	0	0	(5)
Dividends declared		(980)	0	0	(980)	0	0
Distribution to noncontrolling interests		(1)	0	0	0	0	(1)
Common shares issued from treasury stock for stock-based compensation: 4,729,038 and 4,486,768 for the six months ended June 30, 2018 and 2017, respectively		256	29	227	0	0	0
Stock-based compensation expense, before tax (in dollars)		112	112	0	0	0	0
Common shares repurchased: 8,029,422 and 0 for the six months ended June 30, 2018 and 2017, respectively	[1]	(1,250)	0	(1,250)	0	0	0
Other		10	10	0	0	0	0
Balance at Jun. 30, 2018		$ 14,942	$ 5,746	$ (18,028)	$ 28,657	$ (1,496)	$ 63

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