Leases - ROU Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets and Liabilities, Lessee [Abstract]
ROU assets	$ 99	$ 119
Current lease liabilities	84	86
Long-term lease liabilities	15	33
Present value of lease liabilities	$ 99	$ 119
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other long-term liabilities	Other long-term liabilities
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities