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INVESTMENTS IN UNCONSOLIDATED ENTITIES - NARRATIVE (Details) $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) | Jul. 31, 2020 USD ($) projectOwner bank | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received |  |  | $ 668 | $ 643
Oncor Holdings | Oncor Electric Delivery Company LLC. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Ownership interest (as a percent) |  |  | 80.25% |
Sempra Texas Intermediate Holding Company LLC | Oncor Holdings |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Ownership interest (as a percent) |  |  | 100.00% |
Sempra Texas Utilities | Oncor Holdings |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments made during period |  |  | $ 270 | 256
Proceeds from distributions received |  |  | $ 323 | 255
Sempra Infrastructure | Cameron LNG JV |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Ownership percentage in consolidated entity (in percentage) |  |  | 50.20% |
Sempra Infrastructure | TAG |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received |  |  | $ 36 | 32
Sempra Infrastructure | IMG |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received |  |  | 6 |
Sempra Infrastructure | Variable Interest Entity, Not Primary Beneficiary |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Guarantees, carrying value |  |  | 18 |
Sempra Infrastructure | Other current assets | Variable Interest Entity, Not Primary Beneficiary |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Guarantees, carrying value |  |  | 7 |
Sempra Infrastructure | Other long-term assets | Variable Interest Entity, Not Primary Beneficiary |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Guarantees, carrying value |  |  | 11 |
Sempra Infrastructure | Cameron LNG JV |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments made during period |  |  | 11 | 19
Proceeds from distributions received |  |  | 339 | $ 388
Sempra Infrastructure | Cameron LNG JV | Corporate Joint Venture |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Liability cap, amount |  |  | $ 979 |
Number of project owners | projectOwner |  | 4 |  |
Proceeds from related party debt |  | $ 1,500 |  |
Number of project owners sending direct proceeds | projectOwner |  | 2 |  |
Number of project owners sending proceeds from external lenders | projectOwner |  | 2 |  |
Liability cap (as a percent) |  |  | 130.00% |
Sempra Infrastructure | Cameron LNG JV | Corporate Joint Venture | Variable Interest Entity, Not Primary Beneficiary |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from related party debt |  | $ 753 |  |
Return on investments |  | $ 753 |  |
Number of banks | bank |  | 8 |  |
Sempra Infrastructure | Cameron LNG JV | Promissory Note for SDSRA Distribution | Corporate Joint Venture |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received | $ 165 |  |  |
Liability cap, amount | 165 |  |  |
Sempra Infrastructure | Cameron LNG JV | Promissory Note for SDSRA Distribution | Corporate Joint Venture | Deferred Credits and Other |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Senior note, liability | $ 22 |  |  |
Sempra Infrastructure | Cameron LNG JV | Promissory Note for SDSRA Distribution | Corporate Joint Venture | Other current liabilities |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Guarantees, carrying value |  |  | $ 19 |

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