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Leases - Schedule of Future Minimum Lease Payments to be Received (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]  
2021 $ 272
2022 173
2023 90
2024 34
2025 12
2026 and thereafter 1
Total undiscounted lease payments $ 582