WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	$ 1,702
Probable of recovery, legal costs	96
2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	128
Probable of recovery, legal costs	28
Insurance | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	526
Insurance | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	68
FERC TO rates | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	92
FERC TO rates | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	8
WEMA | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	484
WEMA | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	52
Wildfire Fund | 2021 Dixie fire
Loss Contingencies [Line Items]
Probable of recovery	600
Wildfire Fund | 2022 Mosquito fire
Loss Contingencies [Line Items]
Probable of recovery	$ 0