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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Personal Injury Liability Activity | Our personal injury liability activity was as follows:
Millions, for the nine months ended September 30, | 2025 | 2024
Beginning balance | $ | 379 |  | $ | 383 |
Current year accruals | 82 |  | 87 |
Changes in estimates for prior years | 9 |  | (2) |
Payments | (81) |  | (75) |
Ending balance at September 30, | $ | 389 |  | $ | 393 |
Current portion, ending balance at September 30, | $ | 105 |  | $ | 114 |
Schedule of Environmental Liability Activity | Our environmental liability activity was as follows:
Millions, for the nine months ended September 30, | 2025 | 2024
Beginning balance | $ | 268 |  | $ | 245 |
Accruals | 44 |  | 100 |
Payments | (55) |  | (76) |
Ending balance at September 30, | $ | 257 |  | $ | 269 |
Current portion, ending balance at September 30, | $ | 66 |  | $ | 119 |

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