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SEMPRA - INVESTMENTS IN UNCONSOLIDATED ENTITIES - NARRATIVE (Details) - USD ($) $ in Millions |  |  | 9 Months Ended
--- | --- | --- | ---
Oct. 29, 2025 | Oct. 28, 2025 | Sep. 30, 2025 | Sep. 30, 2024
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received |  |  | $ 828 | $ 654
SI Partners | Disposal Group Held-for-sale |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity method investment, held for sale |  |  | $ 2,471 |
Sempra Texas Intermediate Holding Company LLC | Oncor Holdings |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity ownership interest (as a percent) |  |  | 100.00% |
Oncor Holdings | Oncor Electric Delivery Company LLC. |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Ownership interest (as a percent) |  |  | 80.25% |
Sempra Texas Utilities | Oncor Holdings |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments made during period |  |  | $ 1,500 | 578
Proceeds from distributions received |  |  | 459 | 314
Sempra Texas Utilities | Oncor Holdings | Subsequent Event |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments made during period | $ 519 |  |  |
Proceeds from distributions received |  | $ 175 |  |
Sempra Infrastructure | Cameron LNG JV |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Investments made during period |  |  | 2 | 10
Proceeds from distributions received |  |  | 369 | 353
Sempra Infrastructure | TAG |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Proceeds from distributions received |  |  | $ 45 | $ 62

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