Commitments and Contingencies - Asset Retirement Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at begining	$ 15	$ 0
Acquisitions		12
Liabilities incurred	0	3
Liabilities settled/adjustments	0	0
Foreign currency	1
Balance at ending	16	15
Accrued expenses and other current liabilities
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at begining	3
Balance at ending	3	3
Deferred credits and other liabilities
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at begining	12
Balance at ending	$ 13	$ 12