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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Loss Contingencies by Contingency
The following table summarizes the activity in the Company’s accrued obligations for personal injury claims (in millions):
Nine Months Ended September 30,
20252024
Beginning balance$265 $264 
Accruals / changes in estimates50 75 
Payments(59)(89)
     Ending balance$256 $250 
Current portion of ending balance$80 $85 
Accrued Obligations for Environmental Matters
The following table summarizes the activity in the Company’s accrued obligations for environmental matters (in millions):
Nine Months Ended September 30,
20252024
Beginning balance$224 $236 
Accruals / changes in estimates5 4 
Payments(12)(11)
     Ending balance$217 $229 
Current portion of ending balance$35 $35