DERIVATIVE FINANCIAL INSTRUMENTS - COMMODITY VOLUMES (Details)	12 Months Ended
	Dec. 31, 2025 MMBTU MWh	Dec. 31, 2024 MMBTU MWh
Disposal Group Held-for-sale | SI Partners
Derivatives, Fair Value [Line Items]
Disposal group, notional amount, energy measure	1,016
Natural gas
Derivatives, Fair Value [Line Items]
Notional amount, energy measure	336	637
Natural gas | SDG&E
Derivatives, Fair Value [Line Items]
Notional amount, energy measure	14	16
Natural gas | SoCalGas
Derivatives, Fair Value [Line Items]
Notional amount, energy measure	322	347
Congestion revenue rights
Derivatives, Fair Value [Line Items]
Notional amount, energy measure | MWh	18	27
Congestion revenue rights | SDG&E
Derivatives, Fair Value [Line Items]
Notional amount, energy measure | MWh	18	27