WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	$ 114
2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	1,231
Insurance | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	54
Insurance | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	528
FERC TO rates | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	9
FERC TO rates | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	117
WEMA | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	51
WEMA | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	411
Wildfire Fund | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	0
Wildfire Fund | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	$ 175