Income Taxes - Unrecognized Tax Benefits Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation Allowance [Line Items]
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	$ 1	[1]	$ 1	[1]	$ 0
Unrecognized Tax Benefits	20		20		14	$ 24	$ 20	$ 15
Additions related to current year	1		3		0
Additions related to prior years positions	7		5		0
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	3		0		0
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	0				1
Currency			2
unrecognized tax benefits, other uncertain tax positions offsetting benefits from other jurisdictions	16		15		16
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued						14	$ 10	$ 6
Unrecognized Tax Benefits that Would Impact Effective Tax Rate						23
Decrease in Unrecognized Tax Benefits is Reasonably Possible						$ 14
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, Beginning	20		15		14
Additions related to current year	1		3		0
Additions related to prior years positions	7		5		0
Reductions related to prior years positions	(3)		0		0
Settlements with taxing authorities	(1)	[1]	(1)	[1]	0
Currency	0				(1)
Currency			2
Balance, Ending	$ 24		$ 20		$ 15

[1] 2019 and 2018 settlement resulted in $1 million and $1 million cash paid, respectively