OTHER CONTINGENCIES AND COMMITMENTS (Interim Rate Relief Subject to Refund) (Details) - Pacific Gas & Electric Co (Utility) - USD ($) $ in Millions	Mar. 07, 2024	Jun. 15, 2023	Jun. 08, 2023	Dec. 15, 2022
WMCE Interim Rate Relief
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
Wildfire and Gas Safety Costs Interim Rate Relief
Loss Contingencies [Line Items]
Cost recovery		$ 2,500
Interim revenue requirement		688
Interim rate relief	$ 516
Remaining value recoverable	$ 172
Wildfire Costs Interim Rate Relief
Loss Contingencies [Line Items]
Recorded expenditures, expenses		726
Recorded expenditures, capital expenditures		1,500
Gas Safety Costs Interim Rate Relief
Loss Contingencies [Line Items]
Recorded expenditures, expenses		120
Recorded expenditures, capital expenditures		$ 118