Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Ordinary Shares and Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated  Other Comprehensive Loss, Net of Tax	Non- controlling Interests
Beginning Balance (in shares) at Dec. 31, 2019		232.1
Beginning Balance at Dec. 31, 2019	$ 3,443	$ 6,154	$ 1,248	$ (4,033)	$ 74
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	791		772		19
Shares issued - employee stock compensation plans (in shares)		1.2
Shares issued - employee stock compensation plans	(112)	$ (112)
Shares purchased (in shares)		(2.2)
Shares purchased	(463)		(463)
Share-based compensation expense	81	$ 81
Dividends to shareholders	(102)		(102)
Net change in fair value of financial instruments	(5)			(5)
Net foreign currency translation adjustments	(397)			(395)	(2)
Net postretirement benefit obligation	24			24
Ending Balance (in shares) at Mar. 31, 2020		231.1
Ending Balance at Mar. 31, 2020	3,260	$ 6,123	1,455	(4,409)	91
Beginning Balance (in shares) at Dec. 31, 2019		232.1
Beginning Balance at Dec. 31, 2019	3,443	$ 6,154	1,248	(4,033)	74
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,484
Net change in fair value of financial instruments	4
Net foreign currency translation adjustments	(136)
Net postretirement benefit obligation	67
Ending Balance (in shares) at Sep. 30, 2020		229.2
Ending Balance at Sep. 30, 2020	3,620	$ 6,218	1,423	(4,099)	78
Beginning Balance (in shares) at Mar. 31, 2020		231.1
Beginning Balance at Mar. 31, 2020	3,260	$ 6,123	1,455	(4,409)	91
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	411		398		13
Shares issued - employee stock compensation plans (in shares)		0.4
Shares issued - employee stock compensation plans	(45)	$ (45)
Share-based compensation expense	64	64
Dividends to shareholders	(102)		(102)
Net change in fair value of financial instruments	3			3
Net foreign currency translation adjustments	88			87	1
Net postretirement benefit obligation	23			23
Purchases of subsidiary shares from noncontrolling interests	0	$ 4			(4)
Dividends paid to noncontrolling interests on subsidiary common stock	(7)				(7)
Ending Balance (in shares) at Jun. 30, 2020		231.5
Ending Balance at Jun. 30, 2020	3,695	$ 6,146	1,751	(4,296)	94
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	282		275		7
Shares issued - employee stock compensation plans (in shares)		0.1
Shares issued - employee stock compensation plans	12	$ 12
Shares purchased (in shares)		(2.4)
Shares purchased	(500)		(500)
Share-based compensation expense	67	$ 67
Dividends to shareholders	(103)		(103)
Net change in fair value of financial instruments	6			6
Net foreign currency translation adjustments	173			171	2
Net postretirement benefit obligation	20			20
Purchases of subsidiary shares from noncontrolling interests	(9)	$ (7)			(2)
Dividends paid to noncontrolling interests on subsidiary common stock	(23)				(23)
Ending Balance (in shares) at Sep. 30, 2020		229.2
Ending Balance at Sep. 30, 2020	$ 3,620	$ 6,218	1,423	(4,099)	78
Beginning Balance (in shares) at Dec. 31, 2020	225.5	225.5
Beginning Balance at Dec. 31, 2020	$ 3,583	$ 6,314	1,042	(3,861)	88
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	933		913		20
Shares issued - employee stock compensation plans (in shares)		0.9
Shares issued - employee stock compensation plans	(87)	$ (87)
Shares purchased (in shares)		(0.2)
Shares purchased	(50)		(50)
Share-based compensation expense	131	$ 131
Dividends to shareholders	(104)		(104)
Net change in fair value of financial instruments	11			11
Net foreign currency translation adjustments	(70)			(70)
Net postretirement benefit obligation	29			29
Purchases of subsidiary shares from noncontrolling interests	(14)	$ (8)			(6)
Dividends paid to noncontrolling interests on subsidiary common stock	(1)				(1)
Ending Balance (in shares) at Mar. 31, 2021		226.2
Ending Balance at Mar. 31, 2021	$ 4,361	$ 6,350	1,801	(3,891)	101
Beginning Balance (in shares) at Dec. 31, 2020	225.5	225.5
Beginning Balance at Dec. 31, 2020	$ 3,583	$ 6,314	1,042	(3,861)	88
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	435
Net change in fair value of financial instruments	5
Net foreign currency translation adjustments	(108)
Net postretirement benefit obligation	$ 87
Ending Balance (in shares) at Sep. 30, 2021	221.4	221.4
Ending Balance at Sep. 30, 2021	$ 2,299	$ 6,531	(445)	(3,877)	90
Beginning Balance (in shares) at Mar. 31, 2021		226.2
Beginning Balance at Mar. 31, 2021	4,361	$ 6,350	1,801	(3,891)	101
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	393		379		14
Shares issued - employee stock compensation plans (in shares)		0.5
Shares issued - employee stock compensation plans	(52)	$ (52)
Shares purchased (in shares)		(1.1)
Shares purchased	(242)		(242)
Share-based compensation expense	85	$ 85
Dividends to shareholders	(115)		(115)
Net change in fair value of financial instruments	(1)			(1)
Net foreign currency translation adjustments	115			115
Net postretirement benefit obligation	33			33
Dividends paid to noncontrolling interests on subsidiary common stock	(10)				(10)
Ending Balance (in shares) at Jun. 30, 2021		225.6
Ending Balance at Jun. 30, 2021	4,567	$ 6,383	1,823	(3,744)	105
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(891)		(900)		9
Shares issued - employee stock compensation plans (in shares)		0.2
Shares issued - employee stock compensation plans	17	$ 18	(1)
Shares purchased (in shares)		(4.4)
Shares purchased	(1,251)		(1,251)
Share-based compensation expense	130	$ 130
Dividends to shareholders	(116)		(116)
Net change in fair value of financial instruments	(5)			(5)
Net foreign currency translation adjustments	(153)			(153)
Net postretirement benefit obligation	25			25
Dividends paid to noncontrolling interests on subsidiary common stock	$ (24)				(24)
Ending Balance (in shares) at Sep. 30, 2021	221.4	221.4
Ending Balance at Sep. 30, 2021	$ 2,299	$ 6,531	$ (445)	$ (3,877)	$ 90