Leases - Schedule of Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 24	$ 24
Finance lease cost
Amortization of right-of-use assets	6	4
Interest on lease liabilities	2	2
Total finance lease cost	8	6
Short-term lease cost	1	1
Total lease cost	$ 33	$ 31