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EQUITY (Narrative) (Details) - USD ($) $ in Millions |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 15, 2023 | Jul. 19, 2023 | Jul. 12, 2023 | Jun. 21, 2023 | May 15, 2023 | Feb. 28, 2023 | Feb. 15, 2023 | Jul. 19, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2020 | Jun. 30, 2023 | Dec. 31, 2022 | Jul. 08, 2021
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued, net |  |  |  |  |  |  |  |  |  | $ (609.0) | $ (610.0) | $ (609.0) | $ (407.0) |  |  |  |  |  |
Shares outstanding (in shares) |  | 2,568,984,928 |  |  |  |  |  | 2,568,984,928 |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  |  | 2,062,781,659 |  |  |  | 2,062,781,659 |  |  | 2,062,781,659 | 1,987,784,948 |
Non-GAAP core earnings threshold |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,200.0 |  |  |  |  |
Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  |  | 120,000,000 |  |  |  | 120,000,000 |  |  | 120,000,000 |  |
Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares outstanding (in shares) |  | 264,374,809 |  |  |  |  |  | 264,374,809 |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  |  | 264,374,809 |  |  |  | 264,374,809 |  |  | 264,374,809 | 264,374,809 |
Common stock dividends paid |  |  |  | $ 450.0 | $ 3.5 | $ 425.0 | $ 3.5 |  |  |  |  |  |  | $ 875.0 | $ 425.0 |  |  |  |
Pacific Gas & Electric Co (Utility) | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock dividends paid | $ 3.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fire Victim Trust |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares sold, tax impact |  |  |  |  |  |  |  |  |  |  |  |  |  | 527.0 |  |  | $ 1,400.0 |  |
Number of shares sold (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 350,000,000 |  |
Fire Victim Trust | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) |  | 410,000,000 | 60,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares owned (in shares) |  | 67,743,590 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock to be received, value |  |  |  |  |  |  |  |  |  | $ 1,300.0 |  |  |  | $ 1,300.0 |  |  | $ 1,300.0 |  |
PG&E Corporation | Equity Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues (in shares) |  |  |  |  |  |  |  |  |  | 8,000,000 |  |  |  |  |  | 16,000,000 |  |  |
PG&E Corporation | Equity Units | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units expected to convert (in shares) |  |  |  |  |  |  |  |  | 42,000,000 |  |  |  |  |  |  |  |  |  |
PG&E Corporation | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues (in shares) |  |  |  |  |  |  |  |  |  | 67,000,000 |  |  |  |  |  |  |  |  |
Common stock issued, net |  |  |  |  |  |  |  |  |  | $ 634.0 |  |  |  |  |  |  |  |  |
PG&E Corporation | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding, adjusted (in shares) |  | 2,023,497,748 |  |  |  |  |  | 2,023,497,748 |  |  |  |  |  |  |  |  |  |  |
PG&E Corporation | Subsequent Event | Equity Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues (in shares) |  |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |
PG&E Corporation | Subsequent Event | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, shares, new issues (in shares) |  |  |  |  |  |  |  | 28,000,000 |  |  |  |  |  |  |  |  |  |  |
Common stock issued, net |  |  |  |  |  |  |  | $ 270.0 |  |  |  |  |  |  |  |  |  |  |
PG&E Corporation | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity security ownership with board of director approval |  |  |  |  |  |  |  |  |  | 4.75% |  |  |  | 4.75% |  |  | 4.75% |  | 4.75%
PG&E Corporation | Minimum | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of shares, right to receive |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137,000,000 |  |  |
PG&E Corporation | Minimum | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of equity security ownership with board of director approval |  | 3.74% |  |  |  |  |  | 3.74% |  |  |  |  |  |  |  |  |  |  |
PG&E Corporation | Maximum | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule Of Changes In Equity [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of shares, right to receive |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 168,000,000 |  |  |

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