CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY $ in Millions		USD ($) Dividend	Common Stock USD ($)	Additional Paid-in Capital USD ($)	Unearned Compensation USD ($)	Treasury Stock USD ($)	Retained Earnings USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)		Noncontrolling Interests USD ($)
Accumulated other comprehensive income (loss), cumulative translation losses		$ 2,927
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs		$ 923
Number of dividends declared per quarter | Dividend		2
Beginning balance at Dec. 31, 2017			$ 1,466	$ 1,984	$ (5)	$ (20,181)	$ 20,531	$ (3,855)	[1]	$ 303
Ending balance at Mar. 31, 2018			1,466	2,047	(2)	(20,441)	20,581	(3,900)	[2]	350
Beginning balance at Dec. 31, 2017			1,466	1,984	(5)	(20,181)	20,531	(3,855)	[1]	303
Changes in Shareholders' Equity [Roll Forward]
Net income		$ 1,353					1,271			82
Other comprehensive income (loss), net of tax		(160)						(146)	[1]	(14)
Dividends	[3]						(1,085)			(37)
Stock-based compensation expense				47
Shares issued for stock options				64		104
Shares issued for restricted stock units				(14)		14
Treasury stock acquired						(696)
Other				0	5	2	134	(163)	[1],[4]
Ending balance at Jun. 30, 2018			1,466	2,081	0	(20,757)	20,851	(4,164)	[1],[2]	334
Accumulated other comprehensive income (loss), cumulative translation losses		2,832
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs		1,062
Beginning balance at Mar. 31, 2018			1,466	2,047	(2)	(20,441)	20,581	(3,900)	[2]	350
Changes in Shareholders' Equity [Roll Forward]
Net income		675					637			38
Other comprehensive income (loss), net of tax		(280)						(264)	[2]	(16)
Dividends							(367)			(38)
Stock-based compensation expense				19
Shares issued for stock options				16		27
Shares issued for restricted stock units				(2)		2
Treasury stock acquired						(345)
Other				1	2
Ending balance at Jun. 30, 2018			1,466	2,081	0	(20,757)	20,851	(4,164)	[1],[2]	334
Accumulated other comprehensive income (loss), cumulative translation losses		3,121
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs		1,048
Accumulated other comprehensive income (loss), cumulative translation losses		3,155
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs		$ 1,038
Number of dividends declared per quarter | Dividend		2
Beginning balance at Dec. 31, 2018		$ 197	1,466	2,204	(3)	(21,196)	21,615	(4,188)	[1]	299
Ending balance at Mar. 31, 2019			1,466	2,241	(3)	(21,532)	21,436	(4,160)	[2]	342
Beginning balance at Dec. 31, 2018		197	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]	0
Dividends	[3]						(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		(10)	1,466	2,338	(3)	(21,682)	21,653	(4,119)	[1],[2]	337
Accumulated other comprehensive income (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		(10)	$ 1,466	$ 2,338	$ (3)	$ (21,682)	$ 21,653	$ (4,119)	[1],[2]	$ 337
Accumulated other comprehensive income (loss), cumulative translation losses		3,104
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs		$ 1,013

[1] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,104 at June 30, 2019 ($3,121 at June 30, 2018) and $3,155 at December 31, 2018 ($2,927 at December 31, 2017), respectively, and unrecognized retirement plan and other retiree benefits costs of $1,013 at June 30, 2019 ($1,048 at June 30, 2018) and $1,038 at December 31, 2018 ($923 at December 31, 2017), respectively.

[2] Accumulated other comprehensive income (loss) includes cumulative translation losses of $3,104 at June 30, 2019 ($3,121 at June 30, 2018) and $3,134 at March 31, 2019 ($2,832 at March 31, 2018), respectively, and unrecognized retirement plan and other retiree benefits costs of $1,013 at June 30, 2019 ($1,048 at June 30, 2018) and $1,026 at March 31, 2019 ($1,062 at March 31, 2018), respectively.

[3] Two dividends were declared in each of the first quarters of 2019 and 2018.

[4] As a result of the early adoption of ASU 2018-02, the Company reclassified the stranded tax effects in Accumulated other comprehensive income (loss) resulting from the Tax Cuts and Jobs Act (the “TCJA” or “U.S. tax reform”) to Retained earnings. See Note 2, Summary of Accounting Policies in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 for additional information.