v3.26.1
Derivative Instruments - Schedule of Notional Volumes of Derivative Instruments (Details) - SCE
3 Months Ended 12 Months Ended
Mar. 31, 2026
GWh
Bcfe
Dec. 31, 2025
Bcfe
GWh
Electricity options, swaps and forwards    
Derivatives    
Economic Hedges 6,019 3,249
Natural gas options, swaps and forwards    
Derivatives    
Economic Hedges | Bcfe 2 4
Congestion revenue rights    
Derivatives    
Economic Hedges 1,232 5,566
Fin Toll arrangements    
Derivatives    
Economic Hedges 236 228