v3.26.1
Commitments and Contingencies (Tables)
 6 Months Ended
Jun. 30, 2026
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 30,20262025
Beginning balance$413 $379 
Current year accruals59 54 
Changes in estimates for prior years(11)2 
Payments(44)(65)
Ending balance at June 30,$417 $370 
Current portion, ending balance at June 30,$88 $109 
Schedule of Environmental Liability Activity
Our environmental liability activity was as follows:
Millions, for the six months ended June 30,20262025
Beginning balance$259 $268 
Accruals41 28 
Payments(39)(41)
Ending balance at June 30,$261 $255 
Current portion, ending balance at June 30,$65 $69