Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Ordinary Shares	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Company Share of Shareholders' Equity	Non-Controlling Interests
Beginning balance at Dec. 31, 2018		$ 22	$ (2,206)	$ 7,041	$ 6,763	$ (1,363)	$ 10,257	$ 23
Net income	$ 2,785	0	0	0	2,785	0	2,785	0
Other comprehensive income (loss)	(320)	0	0	0	0	(320)	(320)	0
Share-based compensation		0	36	23	(2)	0	57	0
Dividends - common stock		0	0	0	(1,111)	0	(1,111)	0
Dividends on redeemable non-controlling interests	(5)	0	0	0	(5)	0	(5)	0
Repurchases of Company ordinary shares	(3,728)	0	(3,728)	0	0	0	(3,728)	0
Purchase of non-controlling interest		0	0	(47)	0	0	(47)	(5)
Ending balance at Sep. 30, 2019		22	(5,898)	7,017	8,430	(1,683)	7,888	18
Beginning balance at Jun. 30, 2019		22	(2,663)	7,006	7,818	(1,462)	10,721	22
Net income	965	0	0	0	965	0	965	0
Other comprehensive income (loss)	(221)	0	0	0	0	(221)	(221)	0
Share-based compensation		0	5	11	0	0	16	0
Dividends - common stock		0	0	0	(351)	0	(351)	0
Dividends on redeemable non-controlling interests	(2)	0	0	0	(2)	0	(2)	0
Repurchases of Company ordinary shares		0	(3,240)	0	0	0	(3,240)	0
Purchase of non-controlling interest		0	0	0	0	0	0	(4)
Ending balance at Sep. 30, 2019		22	(5,898)	7,017	8,430	(1,683)	7,888	18
Beginning balance at Dec. 31, 2019	8,063	19	(580)	5,954	4,435	(1,784)	8,044	19
Net income	572	0	0	0	572	0	572	0
Other comprehensive income (loss)	(304)	0	0	0	0	(304)	(304)	0
Share-based compensation		0	44	14	(9)	0	49	0
Dividends - common stock	(1,053)	0	0	0	(1,053)	0	(1,053)	0
Dividends on redeemable non-controlling interests	(5)	0	0	0	(5)	0	(5)	0
Repurchases of Company ordinary shares	(4)	0	(4)	0	0	0	(4)	0
Purchase of non-controlling interest		0	0	(7)	0	0	(7)	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0	0	0	0	0	0	(2)
Ending balance at Sep. 30, 2020	7,323	19	(540)	5,975	3,940	(2,088)	7,306	17
Beginning balance at Jun. 30, 2020		19	(548)	5,958	4,188	(2,259)	7,358	19
Net income	114	0	0	0	114	0	114	0
Other comprehensive income (loss)	171	0	0	0	0	171	171	0
Share-based compensation		0	8	17	(8)	0	17	0
Dividends - common stock		0	0	0	(352)	0	(352)	0
Dividends on redeemable non-controlling interests	(2)	0	0	0	(2)	0	(2)	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		0	0	0	0	0	0	(2)
Ending balance at Sep. 30, 2020	$ 7,323	$ 19	$ (540)	$ 5,975	$ 3,940	$ (2,088)	$ 7,306	$ 17