OTHER CONTINGENCIES AND COMMITMENTS (Interim Rate Relief Subject to Refund) (Details) - WMCE Interim Rate Relief - Pacific Gas & Electric Co (Utility) $ in Millions	Dec. 15, 2022 USD ($)
Loss Contingencies [Line Items]
Cost recovery	$ 1,360
Interim revenue requirement	1,290
Recorded expenditures, expenses	1,200
Recorded expenditures, capital expenditures	136
Interim rate relief	1,100
Remaining value recoverable	$ 224