WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	$ 123
Probable of recovery, including legal costs	23
2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	1,687
Probable of recovery, including legal costs	82
Insurance | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	63
Insurance | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	526
FERC TO rates | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	8
FERC TO rates | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	91
WEMA | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	52
WEMA | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	470
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	$ 600