v3.25.4
Exit Activities and Asset Sales (Schedule of Retention Benefit Liability Roll Forward) (Details) - Retention Benefits - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Restructuring Reserve [Roll Forward]    
Retention benefit liability at beginning of period $ 14 $ 16
Costs deferred as a regulatory asset 7 8
Costs paid or settled (19) (10)
Retention benefit liability at the end of the period $ 2 $ 14