v3.26.1
Commitments and Contingencies - Environmental Liability Activity (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accrual for Environmental Loss Contingencies [Roll Forward]    
Beginning balance $ 259 $ 268
Accruals 22 17
Payments (19) (21)
Ending balance 262 264
Current portion, ending balance at March 31, $ 62 $ 76