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Employee Benefit Plans (Expected Gross Benefit Payments) (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Pension Benefits |
Defined benefit plan estimated future benefit payments [Abstract] |
2024 | $ 690
2025 | 697
2026 | 707
2027 | 718
2028 | 735
2029-2033 | 3,668
Other Postretirement Benefits |
Defined benefit plan estimated future benefit payments [Abstract] |
2024 | 61
2025 | 58
2026 | 57
2027 | 57
2028 | 56
2029-2033 | $ 267

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