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Commitment and Contingencies - Schedule of Environmental Matters and Legal Proceedings (Details) - Eastern Ohio Incident - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Loss Contingency Accrual [Roll Forward] |  |
Loss contingency accrual, beginning balance | $ 464 | $ 0
Loss contingency receivable, beginning balance | 0 | 0
Loss contingency accrual net of recoveries, beginning balance | 464 | 0
Loss contingency recognized | 975 | 1,217
Loss contingency accrual payments | (751) | (753)
Loss contingency, receivable, additions | 650 | 101
Loss contingency receivable proceeds | (632) | (101)
Loss contingency accrual provision net of recoveries | 325 | 1,116
Loss contingency accrual payments net of recoveries | (119) | (652)
Loss contingency accrual, ending balance | 688 | 464
Loss contingency receivable, ending balance | 18 | 0
Loss contingency accrual net of recoveries, ending balance | 670 | 464
Environmental |  |
Loss Contingency Accrual [Roll Forward] |  |
Loss contingency accrual, beginning balance | 319 | 0
Loss contingency recognized | 190 | 836
Loss contingency accrual payments | (265) | (517)
Loss contingency accrual, ending balance | 244 | 319
Legal Contingencies And Other |  |
Loss Contingency Accrual [Roll Forward] |  |
Loss contingency accrual, beginning balance | 145 | 0
Loss contingency recognized | 785 | 381
Loss contingency accrual payments | (486) | (236)
Loss contingency accrual, ending balance | $ 444 | $ 145

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