Leases - Components of Lease Expense and Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 20	$ 16	$ 16
Other lease costs	2	3	3
Sublease income	(7)	(7)	(5)
Total lease cost	15	12	14
Operating cash outflows for operating leases	24	23	20
ROU assets obtained in exchange for new operating lease liabilities	$ 1	$ 1	$ 35