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	$ 1,820	0	0	0	1,820	0	1,820	0
Other comprehensive income (loss)	(99)	0	0	0	0	(99)	(99)	0
Share-based compensation		0	31	12	(2)	0	41	0
Dividends - common stock		0	0	0	(760)	0	(760)	0
Dividends - redeemable non-controlling interests	(3)	0	0	0	(3)	0	(3)	0
Repurchases of Company ordinary shares		0	(488)	0	0	0	(488)	0
Purchase of non-controlling interest		0	0	(47)	0	0	(47)	(1)
Ending balance at Jun. 30, 2019		22	(2,663)	7,006	7,818	(1,462)	10,721	22
Beginning balance at Mar. 31, 2019		22	(2,668)	6,996	7,206	(1,418)	10,138	22
Net income	1,003	0	0	0	1,003	0	1,003	0
Other comprehensive income (loss)	(44)	0	0	0	0	(44)	(44)	0
Share-based compensation		0	5	10	(2)	0	13	0
Dividends - common stock		0	0	0	(388)	0	(388)	0
Dividends - redeemable non-controlling interests	(1)	0	0	0	(1)	0	(1)	0
Ending balance at Jun. 30, 2019		22	(2,663)	7,006	7,818	(1,462)	10,721	22
Beginning balance at Dec. 31, 2019	8,063	19	(580)	5,954	4,435	(1,784)	8,044	19
Net income	458	0	0	0	458	0	458	0
Other comprehensive income (loss)	(475)	0	0	0	0	(475)	(475)	0
Share-based compensation		0	36	(3)	(1)	0	32	0
Dividends - common stock	(701)	0	0	0	(701)	0	(701)	0
Dividends - redeemable non-controlling interests	(3)	0	0	0	(3)	0	(3)	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
Ending balance at Jun. 30, 2020	7,377	19	(548)	5,958	4,188	(2,259)	7,358	19
Beginning balance at Mar. 31, 2020		19	(559)	5,950	4,227	(2,313)	7,324	19
Net income	314	0	0	0	314	0	314	0
Other comprehensive income (loss)	54	0	0	0	0	54	54	0
Share-based compensation		0	11	8	(2)	0	17	0
Dividends - common stock		0	0	0	(350)	0	(350)	0
Dividends - redeemable non-controlling interests	(1)	0	0	0	(1)	0	(1)	0
Ending balance at Jun. 30, 2020	$ 7,377	$ 19	$ (548)	$ 5,958	$ 4,188	$ (2,259)	$ 7,358	$ 19