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Commitments and Contingencies (Tables) | 6 Months Ended
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Jun. 30, 2025
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Personal Injury Liability Activity | Our personal injury liability activity was as follows:
Millions, for the six months ended June 30, | 2025 | 2024
Beginning balance | $ | 379 |  | $ | 383 |
Current year accruals | 54 |  | 58 |
Changes in estimates for prior years | 2 |  | - |
Payments | (65) |  | (54) |
Ending balance at June 30, | $ | 370 |  | $ | 387 |
Current portion, ending balance at June 30, | $ | 109 |  | $ | 109 |
Schedule of Environmental Liability Activity | Our environmental liability activity was as follows:
Millions, for the six months ended June 30, | 2025 | 2024
Beginning balance | $ | 268 |  | $ | 245 |
Accruals | 28 |  | 78 |
Payments | (41) |  | (50) |
Ending balance at June 30, | $ | 255 |  | $ | 273 |
Current portion, ending balance at June 30, | $ | 69 |  | $ | 119 |

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