Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
U.S.	$ 12	$ 8	$ (5)
Non-U.S.	99	109	87
Total	111	117	82
Deferred:
U.S.			6
Non-U.S.	7	(9)	(18)
Total	7	(9)	(12)
Total:
U.S.	12	8	1
Non-U.S.	106	100	69
Provision for income taxes	118	108	70
Total	$ 118	$ 108	$ 70