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DEBT (Outstanding Borrowings and Availability) (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Revolving Credit Facility |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | $ 6,130,000,000 |
Loans Outstanding | (2,400,000,000) |
Letters of Credit Outstanding | (902,000,000) |
Facility Availability | 2,828,000,000 |
Revolving Credit Facility | PG&E Corporation |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | 500,000,000 |
Loans Outstanding | 0 |
Letters of Credit Outstanding | 0 |
Facility Availability | 500,000,000 |
Revolving Credit Facility | Pacific Gas & Electric Co (Utility) |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | 4,400,000,000 |
Loans Outstanding | (1,170,000,000) |
Letters of Credit Outstanding | (902,000,000) |
Facility Availability | 2,328,000,000 |
Letter of credit sublimit | 1,500,000,000 |
Receivables Securitization Program | Pacific Gas & Electric Co (Utility) |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | 1,230,000,000 |
Loans Outstanding | (1,230,000,000) | $ (1,200,000,000)
Letters of Credit Outstanding | 0 |
Facility Availability | 0 |
Receivables Securitization Program | Pacific Gas & Electric Co (Utility) | Minimum |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | 1,000,000,000 |
Receivables Securitization Program | Pacific Gas & Electric Co (Utility) | Maximum |  |
Debt [Line Items] |  |
Line of credit facility, maximum borrowing capacity | $ 1,500,000,000 |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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