v3.26.1
Acquisitions and Other Transactions (Divestiture of Rockies Operations) (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Nov. 12, 2025
Disposal Group, Including Discontinued Operations [Line Items]      
Gain (Loss) on Disposition of Assets $ (2) $ 0  
Rockies Operations | Disposal Group, Not Discontinued Operations      
Disposal Group, Including Discontinued Operations [Line Items]      
Disposal Group, Including Discontinued Operation, Consideration     $ 980