WILDFIRE-RELATED CONTINGENCIES (Losses For Claims) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
2019 Kincade fire
Loss Contingency Accrual [Roll Forward]
Loss accrual, beginning balance	$ 769
Accrued Losses	0
Payments	(4)
Loss accrual, ending balance	765
2019 Kincade fire | Pacific Gas & Electric Co (Utility)
Loss Contingency Accrual [Roll Forward]
Loss accrual, ending balance	40
2020 Zogg fire
Loss Contingency Accrual [Roll Forward]
Loss accrual, beginning balance	211
Accrued Losses	0
Payments	(34)
Loss accrual, ending balance	$ 177