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DEBT (Schedule of Long-term Debt) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Debt [Line Items] |  |  |
Debt subject to compromise |  | $ 22,253 | $ 22,075
Debtor reorganization items, write-off of debt issuance costs and debt discounts | $ 178 |  |
Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Debt subject to compromise |  | 21,603 | 21,425
Borrowings under Pre-Petition Credit Facility |  | 3,215 | 3,215
Pollution control bonds |  | 863 | 863
Accrued contractual interest subject to compromise |  | 285 |
PG&E Corporation |  |  |
Debt [Line Items] |  |  |
Debt subject to compromise |  | 650 | 650
Term Loan - Stated Maturity: 2020 | PG&E Corporation |  |  |
Debt [Line Items] |  |  |
Debt subject to compromise |  | $ 350 | 350
Interest rate at period end |  | 3.60% |
Senior Notes Due 2020 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 3.50% |
Senior Notes Due 2022 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 2.45% |
Pollution Control Bonds - Series 2008 F and 2010 E, due 2026 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 1.75% |
Pollution control bonds |  | $ 100 | 100
Pollution Control Bonds - Series 2009 A-B, due 2026 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Pollution control bonds |  | 149 | 149
Pollution Control Bonds - Series 1996 C, E, F, 1997 B due 2026 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Pollution control bonds |  | 614 | 614
Term Loan - Stated Maturity: 2019 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Other borrowings |  | $ 250 | 250
Interest rate at period end |  | 3.00% |
Revolving Credit Facility | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Borrowings under Pre-Petition Credit Facilities |  | $ 2,965 | 2,965
Interest rate at period end |  | 3.67% |
Letters of credit outstanding |  | $ 79 |
Line of Credit | Revolving Credit Facility | PG&E Corporation |  |  |
Debt [Line Items] |  |  |
Debt subject to compromise |  | $ 300 | 300
Interest rate at period end |  | 3.87% |
Senior Notes | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Unamortized discount, net of premium and debt issuance costs |  | $ 0 | (178)
Borrowings under Pre-Petition Credit Facility |  | 17,525 | 17,347
Senior Notes | Senior Notes Due 2020 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Senior notes |  | 800 | 800
Senior Notes | Senior Notes Due 2021 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Senior notes |  | $ 550 | 550
Senior Notes | Senior Notes Due 2021 | Pacific Gas & Electric Co | Minimum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 3.25% |
Senior Notes | Senior Notes Due 2021 | Pacific Gas & Electric Co | Maximum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 4.25% |
Senior Notes | Senior Notes Due 2022 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Senior notes |  | $ 400 | 400
Senior Notes | Senior Notes Due 2023 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Senior notes |  | $ 1,175 | 1,175
Senior Notes | Senior Notes Due 2023 | Pacific Gas & Electric Co | Minimum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 3.25% |
Senior Notes | Senior Notes Due 2023 | Pacific Gas & Electric Co | Maximum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 4.25% |
Senior Notes | Senior Notes Due 2024 through 2047 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Senior notes |  | $ 14,600 | $ 14,600
Senior Notes | Senior Notes Due 2024 through 2047 | Pacific Gas & Electric Co | Minimum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 2.95% |
Senior Notes | Senior Notes Due 2024 through 2047 | Pacific Gas & Electric Co | Maximum |  |  |
Debt [Line Items] |  |  |
Contractual Interest Rates |  | 6.35% |
Letter of Credit | Pollution Control Bonds - Series 2009 A-B, due 2026 | Pacific Gas & Electric Co |  |  |
Debt [Line Items] |  |  |
Interest rate at period end |  | 7.70% |
Letter of Credit | Pollution Control Bonds - Series 1996 C, E, F, 1997 B due 2026 | Pacific Gas & Electric Co | Minimum |  |  |
Debt [Line Items] |  |  |
Interest rate at period end |  | 7.70% |
Letter of Credit | Pollution Control Bonds - Series 1996 C, E, F, 1997 B due 2026 | Pacific Gas & Electric Co | Maximum |  |  |
Debt [Line Items] |  |  |
Interest rate at period end |  | 7.83% |

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