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Employee Benefit Plans (Expected Benefit Payments for Company's Pension and Postretirement Plans as well as Expected Medicare Part D Subsidy Receipts Related to Postretirement Plan) (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Pension Benefits |
Defined Benefit Plan Disclosure [Line Items] |
2024 | $ 1,049
2025 | 863
2026 | 854
2027 | 885
2028 | 894
2029-2033 | 4,588
Total | 9,133
Postretirement |
Defined Benefit Plan Disclosure [Line Items] |
2024 | 123
2025 | 124
2026 | 122
2027 | 115
2028 | 103
2029-2033 | 376
Total | $ 963

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