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Pension and Other Postretirement Benefits - Funding and Cash Flows and Defined Contribution Plans (Details) $ in Millions | Dec. 31, 2021 USD ($)
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Pension benefits paid |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2022 | $ 152
2023 | 149
2024 | 145
2025 | 145
2026 | 141
2027 - 2031 | 671
Total benefit payments | 1,403
Other post- retirement benefits |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2022 | 12
2023 | 12
2024 | 12
2025 | 11
2026 | 11
2027 - 2031 | 53
Total benefit payments | $ 111

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