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
Adjustment to adopt new accounting guidance | Lease accounting	[1]	$ 235	$ 0	$ 0	$ 235	$ 0	$ 0
Adjustment to adopt new accounting guidance | Reclassification of certain tax effects from accumulated other comprehensive income	[1]	0	0	0	(108)	108	0
Balance at Dec. 31, 2018		14,080	5,827	(20,531)	30,427	(1,684)	41
Balance at Jan. 01, 2019		14,315	5,827	(20,531)	30,554	(1,576)	41
Balance at Dec. 31, 2018		14,080	5,827	(20,531)	30,427	(1,684)	41
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		1,884	0	0	1,881	0	3
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		(22)	0	0	0	(22)	0
Pension and other postretirement benefits, net of tax		(7)	0	0	0	(7)	0
Derivative financial instruments, net of tax		1	0	0	0	1	0
Available-for-sale securities, net of tax		16	0	0	0	16	0
Distribution to noncontrolling interests		(1)	0	0	0	0	(1)
Common shares issued from treasury stock for stock-based compensation: three months: 1,859,065 in 2019 and 1,197,083in 2020		(5)	(73)	68	0	0	0
Stock-based compensation expense, before tax (in dollars)		45	45	0	0	0	0
Common shares repurchased: three months: 5,699,525 in 2019 and 9,328,184 in 2020	[2]	(751)	0	(751)	0	0	0
Other		3	(5)	0	0	0	2
Balance at Mar. 31, 2019		15,478	5,804	(21,214)	32,435	(1,588)	41
Adjustment to adopt new accounting guidance | Credit losses	[1]	(25)	0	0	(25)	0	0
Balance at Dec. 31, 2019		14,629	5,935	(24,217)	34,437	(1,567)	41
Balance at Jan. 01, 2020		14,604	5,935	(24,217)	34,412	(1,567)	41
Balance at Dec. 31, 2019		14,629	5,935	(24,217)	34,437	(1,567)	41
Increase (Decrease) in Shareholders' Equity
Profit of consolidated and affiliated companies		1,093	0	0	1,092	0	1
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		(360)	0	0	0	(360)	0
Pension and other postretirement benefits, net of tax		(7)	0	0	0	(7)	0
Derivative financial instruments, net of tax		(60)	0	0	0	(60)	0
Available-for-sale securities, net of tax		(18)	0	0	0	(18)	0
Common shares issued from treasury stock for stock-based compensation: three months: 1,859,065 in 2019 and 1,197,083in 2020		(23)	(62)	39	0	0	0
Stock-based compensation expense, before tax (in dollars)		47	47	0	0	0	0
Common shares repurchased: three months: 5,699,525 in 2019 and 9,328,184 in 2020	[2]	(1,163)	0	(1,163)	0	0	0
Other		126	126	0	0	0	0
Balance at Mar. 31, 2020		$ 14,239	$ 6,046	$ (25,341)	$ 35,504	$ (2,012)	$ 42

[1] See Note 2 for additional information.

[2] See Note 12 for additional information.