BANKRUPTCY FILING (Reorganization Items, Net) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Pacific Gas & Electric Co (Utility)
Debt Instrument [Line Items]
Payments (refunds) for reorganization items	$ 400	$ 223
Probable of recovery	35
PG&E Corporation
Debt Instrument [Line Items]
Payments (refunds) for reorganization items	$ 102	$ 15

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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