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Contingencies and Commitments (Future Purchase Obligations and Minimum Lease Payments) (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
2021 | $ 761
2022 | 2
2023 | 1,670
2024 | 1,636
2025 | 1,400
Thereafter | 8,646
Purchase obligations |
2021 | 1,294
2022 | 76
2023 | 58
2024 | 52
2025 | 52
Thereafter | 55
Minimum lease payments |
2021 | 110
2022 | 87
2023 | 65
2024 | 38
2025 | 30
Thereafter | $ 90

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