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RELATED PARTY AGREEMENTS AND TRANSACTIONS (Narrative) (Details) - USD ($)
$ in Millions
Aug. 11, 2021
Dec. 31, 2022
Dec. 31, 2021
Related Party Transaction [Line Items]      
Intercompany note to PG&E Corporation $ 145    
Pacific Gas & Electric Co (Utility)      
Related Party Transaction [Line Items]      
Current receivables   $ 33 $ 173
Current payables   $ 46 $ 19