OTHER CONTINGENCIES AND COMMITMENTS (Other Commitments) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2040	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2025	Jul. 11, 2024	Jul. 11, 2023
Operating Leased Assets [Line Items]
Payments for other commitments		$ 106	$ 63	$ 50
Oakland Headquarters Lease | Pacific Gas & Electric Co (Utility)
Operating Leased Assets [Line Items]
Purchase price							$ 906
Purchase price, deposits							$ 150
Oakland Headquarters Lease | Pacific Gas & Electric Co (Utility) | Forecast
Operating Leased Assets [Line Items]
Purchase price, deposits					$ 506	$ 250
SB 901 Securitization | Secured Debt
Operating Leased Assets [Line Items]
Shareholder contribution amount		$ 1,000
SB 901 Securitization | Secured Debt | Forecast
Operating Leased Assets [Line Items]
Shareholder contribution amount	$ 775
Minimum
Operating Leased Assets [Line Items]
Extension option for operating leases		1 year
Maximum
Operating Leased Assets [Line Items]
Extension option for operating leases		5 years