CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Unearned Compensation	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)		Noncontrolling Interests
Changes in Shareholders' Equity [Roll Forward]
Accumulated other comprehensive loss, cumulative translation losses	$ 3,155
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	1,038
Beginning balance at Dec. 31, 2018		$ 1,466	$ 2,204	$ (3)	$ (21,196)	$ 21,615	$ (4,188)	[1]	$ 299
Changes in Shareholders' Equity [Roll Forward]
Net income	1,218					1,146			72
Other comprehensive income (loss), net of tax	69						69	[1]
Dividends						(1,103)			(34)
Stock-based compensation expense			34
Shares issued for stock options			114		162
Shares issued for restricted stock units			(14)		14
Treasury stock acquired					(664)
Other					2	(5)
Ending balance at Jun. 30, 2019		1,466	2,338	(3)	(21,682)	21,653	(4,119)	[1],[2]	337
Changes in Shareholders' Equity [Roll Forward]
Accumulated other comprehensive loss, cumulative translation losses	3,134
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	1,026
Beginning balance at Mar. 31, 2019		1,466	2,241	(3)	(21,532)	21,436	(4,160)	[2]	342
Changes in Shareholders' Equity [Roll Forward]
Net income	618					586			32
Other comprehensive income (loss), net of tax	36						41	[2]	(5)
Dividends						(369)			(32)
Stock-based compensation expense			17
Shares issued for stock options			81		113
Shares issued for restricted stock units			(1)		1
Treasury stock acquired					(265)
Other					1
Ending balance at Jun. 30, 2019		1,466	2,338	(3)	(21,682)	21,653	(4,119)	[1],[2]	337
Changes in Shareholders' Equity [Roll Forward]
Accumulated other comprehensive loss, cumulative translation losses	3,104
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	1,013
Accumulated other comprehensive loss, cumulative translation losses	3,128
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	1,138
Beginning balance at Dec. 31, 2019	558	1,466	2,488	(2)	(22,063)	22,501	(4,273)	[1]	441
Changes in Shareholders' Equity [Roll Forward]
Net income	1,423					1,350			73
Other comprehensive income (loss), net of tax	(260)						(247)	[1]	(13)
Dividends						(1,124)			(37)
Stock-based compensation expense			32
Shares issued for stock options			160		197
Shares issued for restricted stock units			(17)		17
Treasury stock acquired					(228)
Other			3	1	2	4	1
Ending balance at Jun. 30, 2020	732	1,466	2,666	(1)	(22,075)	22,731	(4,519)	[1],[2]	464
Changes in Shareholders' Equity [Roll Forward]
Accumulated other comprehensive loss, cumulative translation losses	3,467
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	1,122
Beginning balance at Mar. 31, 2020		1,466	2,623	(1)	(22,104)	22,481	(4,578)	[2]	454
Changes in Shareholders' Equity [Roll Forward]
Net income	675					635			40
Other comprehensive income (loss), net of tax	61						58	[2]	3
Dividends						(386)			(33)
Stock-based compensation expense			16
Shares issued for stock options			27		33
Shares issued for restricted stock units			(2)		2
Treasury stock acquired					(8)
Other			2		2	1	1
Ending balance at Jun. 30, 2020	732	$ 1,466	$ 2,666	$ (1)	$ (22,075)	$ 22,731	$ (4,519)	[1],[2]	$ 464
Changes in Shareholders' Equity [Roll Forward]
Accumulated other comprehensive loss, cumulative translation losses	3,402
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	$ 1,108

[1] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,402 at June 30, 2020 ($3,104 at June 30, 2019) and $3,128 at December 31, 2019 ($3,155 at December 31, 2018), respectively, and unrecognized retirement plan and other retiree benefits costs of $1,108 at June 30, 2020 ($1,013 at June 30, 2019) and $1,138 at December 31, 2019 ($1,038 at December 31, 2018), respectively.

[2] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,402 at June 30, 2020 ($3,104 at June 30, 2019) and $3,467 at March 31, 2020 ($3,134 at March 31, 2019), respectively, and unrecognized retirement plan and other retiree benefits costs of $1,108 at June 30, 2020 ($1,013 at June 30, 2019) and $1,122 at March 31, 2020 ($1,026 at March 31, 2019), respectively.