Leases - Schedule of Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent	us-gaap:AccruedLiabilitiesCurrent
Future minimum lease payments, 2020	$ 30
Operating Lease, Right-of-Use Asset	94	$ 105
Operating lease liabilities	26	26
Operating Lease, Liability, Noncurrent	77	88
Operating Lease, Liability	103	114
Operating Lease, Payments	$ 31	$ 33
Operating Lease, Weighted Average Remaining Lease Term	5 years	5 years
Operating Lease, Weighted Average Discount Rate, Percent	5.00%	5.00%
Future minimum lease payments, 2021	$ 24
Future minimum lease payments, 2022	20
Future minimum lease payments, 2023	16
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(13)
Lessee, Operating Lease, Liability, Payments, Due	$ 103