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)	[1]	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)		$ 299
Changes in Shareholders' Equity [Roll Forward]
Net income		600					560			40
Other comprehensive income (loss), net of tax		33						28		5
Dividends	[2]						(734)			(2)
Stock-based compensation expense				17
Shares issued for stock options				33		49
Shares issued for restricted stock units				(13)		13
Treasury stock acquired						(399)
Other						1	(5)
Ending balance at Mar. 31, 2019			1,466	2,241	(3)	(21,532)	21,436	(4,160)		342
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
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)		441
Changes in Shareholders' Equity [Roll Forward]
Net income		748					715			33
Other comprehensive income (loss), net of tax		(321)						(305)		(16)
Dividends	[2]						(738)			(4)
Stock-based compensation expense				16
Shares issued for stock options				133		164
Shares issued for restricted stock units				(15)		15
Treasury stock acquired						(220)
Other				1	1		3
Ending balance at Mar. 31, 2020		341	$ 1,466	$ 2,623	$ (1)	$ (22,104)	$ 22,481	$ (4,578)		$ 454
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

[1] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,467 at March 31, 2020 ($3,134 at March 31, 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 $1,122 at March 31, 2020 ($1,026 at March 31, 2019) and $1,138 at December 31, 2019 ($1,038 at December 31, 2018), respectively.

[2] Two dividends were declared in each of the first quarters of 2020 and 2019