WILDFIRE-RELATED CONTINGENCIES (Regulatory Recovery) (Details) - 2018 Camp Fire and 2017 Northern California Wildfires - USD ($) $ in Millions	Apr. 30, 2020	Jul. 08, 2019
Loss Contingencies [Line Items]
Customer Harm Threshold, potential regulatory adjustment, percentage		20.00%
Customer Harm Threshold, potential regulatory adjustment, percentage of total disallowed wildlife liability		5.00%
Subsequent event
Loss Contingencies [Line Items]
Customer Harm Threshold, post-emergence transaction, securitized	$ 7,500
Customer Harm Threshold, post-emergence transaction, debt retirement	6,000
Customer Harm Threshold, post-emergence transaction, debt payment acceleration	$ 700