v3.26.3
Liabilities, Commitments and Contingencies - Schedule of Environmental Remediation Activity (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Environmental [Roll Forward]    
Beginning balance – January 1 $ 877 $ 834
Reductions for payments made, net of recoveries (62) (53)
Changes in estimates 386 127
Ending balance – September 30 $ 1,201 $ 908