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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Personal Injury Liability Activity | Our personal injury liability activity was as follows:
Millions | 2024 | 2023 | 2022
Beginning balance | $ | 383 |  | $ | 361 |  | $ | 325 |
Current year accruals | 121 |  | 112 |  | 107 |
Changes in estimates for prior years | (14) |  | 89 |  | 55 |
Payments | (111) |  | (179) |  | (126) |
Ending balance at December 31 | $ | 379 |  | $ | 383 |  | $ | 361 |
Current portion, ending balance at December 31 | $ | 106 |  | $ | 113 |  | $ | 84 |
Schedule of Environmental Liability Activity | Our environmental liability activity was as follows:
Millions | 2024 | 2023 | 2022
Beginning balance | $ | 245 |  | $ | 253 |  | $ | 243 |
Accruals | 129 |  | 99 |  | 84 |
Payments | (106) |  | (107) |  | (74) |
Ending balance at December 31 | $ | 268 |  | $ | 245 |  | $ | 253 |
Current portion, ending balance at December 31 | $ | 83 |  | $ | 91 |  | $ | 67 |

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