Leases Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Year Two	$ 3
Lessee, Operating Lease, Liability, Payments, Due Year Three	1
Lessee, Operating Lease, Liability, Payments, Due Year Four	1
Lessee, Operating Lease, Liability, Payments, Due Year Five	1
Lessee, Operating Lease, Liability, Payments, Due after Year Five	42
Lessee, Operating Lease, Liability, Payments, Due	52
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(30)
Operating Lease, Liability	22	$ 26
Finance Lease, Liability, Payments, Due Year One	20
Finance Lease, Liability, Payments, Due Year Two	20
Finance Lease, Liability, Payments, Due Year Three	27
Finance Lease, Liability, Payments, Due Year Four	27
Finance Lease, Liability, Payments, Due Year Five	27
Finance Lease, Liability, Payments, Due after Year Five	382
Finance Lease, Liability, Payment, Due	503
Finance Lease, Liability, Undiscounted Excess Amount	(189)
Finance Lease, Liability	314	$ 293
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 4