DEBT (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 19, 2026	Mar. 31, 2026	Mar. 31, 2025	Feb. 20, 2026	Dec. 31, 2025	Dec. 04, 2023
First Mortgage Bonds Due 2029 | Utility
Debt [Line Items]
Debt instrument, face amount				$ 400
Interest rate				6.10%
First Mortgage Bonds Due 2036 | Utility
Debt [Line Items]
Debt instrument, face amount				$ 1,000
Interest rate				5.20%
First Mortgage Bonds Due 2056 | Utility
Debt [Line Items]
Debt instrument, face amount				$ 800
Interest rate				6.00%
First Mortgage Bonds Due 2026 | Utility
Debt [Line Items]
Debt instrument, face amount				$ 600
Interest rate				2.95%
Fixed-to-Fixed Reset Rate Junior Subordinated Notes Due 2056 | PG&E Corporation
Debt [Line Items]
Debt instrument, face amount	$ 1,000
Interest rate	6.85%
Interest rate reset period	5 years
Basis spread on variable rate	3.225%
Convertible Notes due 2027 | PG&E Corporation | Secured Debt
Debt [Line Items]
Debt instrument, face amount						$ 2,150
Interest rate						4.25%
Debt financial instrument		$ 2,140			$ 2,140
Debt issuance costs		11			$ 13
Interest expense		$ 23	$ 23