WILDFIRE-RELATED CONTINGENCIES (Losses For Claims) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
2019 Kincade Fire
Loss Contingency Accrual [Roll Forward]
Loss accrual, beginning balance		$ 625	$ 0
Accrued Losses		175	625
Payments		(31)
Loss accrual, ending balance	$ 769	769	625
Settlement reached	31	31
Litigation payment		31
2020 Zogg Fire
Loss Contingency Accrual [Roll Forward]
Loss accrual, beginning balance		275
Accrued Losses		100
Payments		(67)
Loss accrual, ending balance	308	308	$ 275
Settlement reached	$ 100
2020 Zogg Fire | Pacific Gas & Electric Co (Utility)
Loss Contingency Accrual [Roll Forward]
Litigation payment		$ 67