Leases, Schedule of Minimum Operating and Finance Lease Payments (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Year One	$ 7
Lessee, Operating Lease, Liability, Payments, Due Year Two	26
Lessee, Operating Lease, Liability, Payments, Due Year Three	22
Lessee, Operating Lease, Liability, Payments, Due Year Four	18
Lessee, Operating Lease, Liability, Payments, Due Year Five	11
Lessee, Operating Lease, Liability, Payments, Due after Year Five	30
Lessee, Operating Lease, Liability, Payments, Due	114
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	14
Operating Lease, Liability	100
Finance Lease, Liability, Payments, Year One	1
Finance Lease, Liability, Payments, Due Year Two	5
Finance Lease, Liability, Payments, Due Year Three	5
Finance Lease, Liability, Payments, Due Year Four	5
Finance Lease, Liability, Payments, Due Year Five	6
Finance Lease, Liability, Payments, Due after Year Five	11
Finance Lease, Liability, Payments, Due	33
Finance Lease, Liability, Undiscounted Excess Amount	6
Finance Lease, Liability	$ 27	$ 25