DEBT (Narrative) (Details) - USD ($) $ in Millions	Apr. 16, 2024	Feb. 28, 2024	Dec. 04, 2023
2 Year Term Loan | Pacific Gas & Electric Co (Utility) | Subsequent Event
Debt [Line Items]
Debt instrument, face amount	$ 400
364-Day 2023 Tranche Loans | Pacific Gas & Electric Co (Utility) | Subsequent Event
Debt [Line Items]
Debt instrument, face amount	125
364 Day 2024 Term Loan | Pacific Gas & Electric Co (Utility) | Subsequent Event
Debt [Line Items]
Debt instrument, face amount	$ 525
364 Day 2024 Term Loan | Pacific Gas & Electric Co (Utility) | Subsequent Event | SOFR
Debt [Line Items]
Credit spread adjustment	0.10%
Basis spread on variable rate	1.375%
364 Day 2024 Term Loan | Pacific Gas & Electric Co (Utility) | Subsequent Event | Base Rate
Debt [Line Items]
Basis spread on variable rate	0.375%
First Mortgage Bonds Due 2029 | Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		$ 850
Interest rate		5.55%
First Mortgage Bonds Due 2034 | Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		$ 1,100
Interest rate		5.80%
First Mortgage Bonds Due 2053 | Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		$ 300
Interest rate		6.75%
Convertible Notes Due 2027 | PG&E Corporation | Secured Debt
Debt [Line Items]
Debt instrument, face amount			$ 2,150
Interest rate			4.25%