Leases - Maturities of Operating and Financing Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
2022	$ 0
2023	1
2024	0
2025	0
2026	0
Remainder	5
Total lease payments	6
Less: Interest	(2)
Present value of lease liabilities	4
Operating lease, payments due, related to options to extend	2
Finance Leases
2022	4
2023	4
2024	4
2025	5
2026	5
Remainder	22
Total lease payments	44
Less: Interest	(20)
Present value of lease liabilities	24
Finance lease, liability, payments due, principal amounts	24
Finance lease, liability, payments due, executory costs	7
Finance lease liability	1	$ 1
Total
2022	4
2023	5
2024	4
2025	5
2026	5
Remainder	27
Total lease payments	50
Less: Interest	(22)
Present value of lease liabilities	$ 28

Finance Lease, Liability, Payments, Due, Executory Costs

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Lessee, Operating Lease, Payments, Due, Related To Options To Extend

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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-Publisher FASB
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-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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