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Employee Benefit Plans (Estimated Cash Flows) (Details) $ in Millions | Dec. 31, 2024 USD ($)
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Pension Plans | Qualified Plan |
Estimated future benefit payments |
2025 | $ 335
2026 | 345
2027 | 347
2028 | 350
2029 | 347
2030-2034 | 1,709
Pension Plans | Nonqualified Plan |
Defined Benefit Plan Disclosure [Line Items] |
Estimated 2025 employer contributions | 24
Estimated future benefit payments |
2025 | 24
2026 | 24
2027 | 24
2028 | 23
2029 | 22
2030-2034 | 89
Postretirement Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Estimated 2025 employer contributions | 22
Estimated future benefit payments |
2025 | 22
2026 | 22
2027 | 22
2028 | 21
2029 | 21
2030-2034 | $ 100

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