Leases Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessor, Operating Lease, Term of Contract	8 years
Operating Leases, Future Minimum Payments Receivable, Remainder of Fiscal Year	$ 1
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	5
Lessee, Operating Lease, Liability, Payments, Due Year Two	5
Lessee, Operating Lease, Liability, Payments, Due Year Three	5
Lessee, Operating Lease, Liability, Payments, Due Year Four	5
Lessee, Operating Lease, Liability, Payments, Due Year Five	4
Lessee, Operating Lease, Liability, Payments, Due after Year Five	14
Lessee, Operating Lease, Liability, Payments, Due	37
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(9)
Operating Lease, Right-of-Use Asset	23	$ 25
Operating Lease, Payments	5	4
Operating Lease, Expense	5	4
Variable Lease, Cost	0	0
Sublease Income	(1)	(1)
Lease, Cost	4	4
Operating Lease, Liability	$ 28	$ 30
Operating Lease, Weighted Average Remaining Lease Term	7 years 8 months 12 days	8 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	7.70%	7.70%
Operating Leases, Future Minimum Payments Receivable, in Two Years	$ 1
Operating Leases, Future Minimum Payments Receivable, in Three Years	1
Operating Leases, Future Minimum Payments Receivable, in Four Years	1
Operating Leases, Future Minimum Payments Receivable, in Five Years	1
Operating Leases, Future Minimum Payments, Due Thereafter	4
Lessor, Operating Lease, Payments to be Received	10
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0	$ 0
Minimum [Member]
Lessee Operating Lease Remaining Lease Term	2 years
Maximum [Member]
Lessee Operating Lease Remaining Lease Term	8 years