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Postretirement Plans - Schedule of Estimated Future Benefit Payments (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Pension |
Pensions |
2024 | $ 4,524
2025 | 4,425
2026 | 4,345
2027 | 4,241
2028 | 4,143
2029-2033 | 19,106
Other Postretirement Benefits |
Pensions |
2024 | 346
2025 | 328
2026 | 306
2027 | 282
2028 | 256
2029-2033 | 943
Gross benefits paid |
2024 | 358
2025 | 341
2026 | 319
2027 | 295
2028 | 269
2029-2033 | 1,004
Subsidies |
2024 | (12)
2025 | (13)
2026 | (13)
2027 | (13)
2028 | (13)
2029-2033 | $ (61)

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- Definition Expected future gross payments in the fifth fiscal year following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Expected future gross payments in the fourth fiscal year following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Expected future gross payments in the next fiscal year following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Expected future gross payments after the five fiscal years following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Expected future gross payments in the third fiscal year following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Expected future gross payments in the second fiscal year following the latest fiscal year from a defined benefit plan prior to reduction related to the Medicare Part D subsidy + References No definition available. + Details
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- Definition Gross Benefits Paid + References No definition available. + Details
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- Definition Pensions + References No definition available. + Details
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- Definition Subsidies + References No definition available. + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of prescription drug subsidy receipt expected in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480266/715-60-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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