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DEBT (Narrative) (Details) |  |  |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 15, 2024 USD ($) | Sep. 11, 2024 USD ($) | Jul. 25, 2024 USD ($) | Apr. 16, 2024 USD ($) | Dec. 04, 2023 USD ($) day $ / shares | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 05, 2024 USD ($) | Aug. 01, 2024 USD ($) | Feb. 28, 2024 USD ($) | Aug. 10, 2023 USD ($)
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Write-off of deferred debt issuance costs |  |  |  |  |  | $ 9,000,000 |  |  |  |  |  |
Debt financial instrument |  |  |  |  |  | 53,569,000,000 | $ 50,975,000,000 |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | 800,000,000 | 3,075,000,000 | $ 5,968,000,000 |  |  |  |
PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  | 0 | 0 | 28,000,000 |  |  |  |
Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures for future recovery |  |  |  |  |  |  |  |  |  |  |  | $ 1,380,000,000
Repayments of long-term debt |  |  |  |  |  | $ 800,000,000 | 3,075,000,000 | $ 5,941,000,000 |  |  |  |
2 Year Term Loan | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 6.60% |  |  |  |  |  |
364-Day 2023 Tranche Loans | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  | 125,000,000 |  |  |  |  |  |  |  |
364 Day 2024 Term Loan | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  | $ 525,000,000 |  |  |  |  |  |  |  |
364 Day 2024 Term Loan | Pacific Gas & Electric Co (Utility) | 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) | Base Rate |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 0.375% |  |  |  |  |  |  |  |
Term Loan |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, gross |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |
Term Loan | PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  | $ 2,150,000,000 |  |  |  |  |  |  |
Utility revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum facility limit |  |  |  |  |  | $ 6,400,000,000 |  |  |  |  |  |
Remaining borrowings capacity |  |  |  |  |  | 5,767,000,000 |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 0 |  |  |  |  |  |
Utility revolving credit facility | PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum facility limit |  |  |  |  |  | 500,000,000 |  |  |  |  |  |
Extension option, term |  |  | 1 year |  |  |  |  |  |  |  |  |
Remaining borrowings capacity |  |  |  |  |  | 500,000,000 |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 0 |  |  |  |  |  |
Utility revolving credit facility | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum facility limit |  |  | $ 4,196,000,000 |  |  | 4,400,000,000 |  |  |  |  |  |
Extension option, term |  |  | 1 year |  |  |  |  |  |  |  |  |
Remaining borrowings capacity |  |  | $ 204,000,000 |  |  | 3,767,000,000 |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | 0 |  |  |  |  |  |
Series 2024-A Senior Secured Recovery Bonds | Pacific Gas & Electric Co (Utility) | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  | $ 1,420,000,000 |  |
Recovery Bonds Tranche One | Pacific Gas & Electric Co (Utility) | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |
Interest rate |  |  |  |  |  |  |  |  |  | 4.838% |  |
Recovery Bonds Tranche Two | Pacific Gas & Electric Co (Utility) | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  | $ 373,000,000 |  |
Interest rate |  |  |  |  |  |  |  |  |  | 5.231% |  |
Recovery Bonds Tranche Three | Pacific Gas & Electric Co (Utility) | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  | $ 746,000,000 |  |
Interest rate |  |  |  |  |  |  |  |  |  | 5.529% |  |
First Mortgage Bonds Due 2025 | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |
First Mortgage Bonds Due 2029 | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 850,000,000 |
Interest rate |  |  |  |  |  |  |  |  |  |  | 5.55% |
Long-term debt, gross |  |  |  |  |  | $ 2,100,000,000 | 1,250,000,000 |  |  |  |  |
First Mortgage Bonds Due 2029 | Pacific Gas & Electric Co (Utility) | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 4.20% |  |  |  |  |  |
First Mortgage Bonds Due 2034 | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 1,100,000,000 |
Interest rate |  |  |  |  |  |  |  |  |  |  | 5.80% |
Long-term debt, gross |  |  |  |  |  | $ 1,900,000,000 | 800,000,000 |  |  |  |  |
First Mortgage Bonds Due 2034 | Pacific Gas & Electric Co (Utility) | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 5.80% |  |  |  |  |  |
First Mortgage Bonds Due 2053 | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |
Interest rate |  |  |  |  |  |  |  |  |  |  | 6.75% |
First Mortgage Bonds Due 2054 | Pacific Gas & Electric Co (Utility) |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  | $ 750,000,000 |  |  |
Interest rate |  |  |  |  |  |  |  |  | 5.90% |  |  |
Junior Subordinated Notes Due 2055 |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount | $ 500,000,000 | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 3.883% | 3.883% |  |  |  |  |  |  |  |  |  |
Interest rate | 7.375% | 7.375% |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes Due 2055 | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 7.375% | 7.375% |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes Due 2055 | PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 7.38% |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | $ 1,500,000,000 | 0 |  |  |  |  |
Convertible Notes Due 2027 | PG&E Corporation |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  | 4.25% |  |  |  |  |  |
Long-term debt, gross |  |  |  |  |  | $ 2,150,000,000 | 2,150,000,000 |  |  |  |  |
Convertible Notes Due 2027 | PG&E Corporation | Secured Debt |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 2,150,000,000 |  |  |  |  |  |  |
Interest rate |  |  |  |  | 4.25% |  |  |  |  |  |  |
Debt financial instrument |  |  |  |  | $ 2,120,000,000 | 2,130,000,000 | 2,120,000,000 |  |  |  |  |
Conversion rate |  |  |  |  | 0.0431416 |  |  |  |  |  |  |
Conversion price | $ / shares |  |  |  |  | $ 23.18 |  |  |  |  |  |  |
Debt instrument, redemption price, percentage |  |  |  |  | 100.00% |  |  |  |  |  |  |
Debt issuance costs |  |  |  |  |  | 20,000,000 | (27,000,000) |  |  |  |  |
Interest expense |  |  |  |  |  | $ 98,000,000 | $ 7,000,000 |  |  |  |  |
Convertible Notes Due 2027 | PG&E Corporation | Secured Debt | Debt Conversion Terms One |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Threshold trading days | day |  |  |  |  | 20 |  |  |  |  |  |  |
Threshold consecutive trading days | day |  |  |  |  | 30 |  |  |  |  |  |  |
Threshold percentage of stock price |  |  |  |  | 130.00% |  |  |  |  |  |  |
Convertible Notes Due 2027 | PG&E Corporation | Secured Debt | Debt Conversion Terms Two |  |  |  |  |  |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Threshold trading days | day |  |  |  |  | 5 |  |  |  |  |  |  |
Threshold consecutive trading days | day |  |  |  |  | 10 |  |  |  |  |  |  |
Threshold percentage of stock price |  |  |  |  | 90.00% |  |  |  |  |  |  |

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