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SEMPRA - INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARIZED FINANCIAL INFORMATION (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Schedule of Equity Method Investments [Line Items] |  |
Interest expense | $ (433) | $ (305)
Income tax (expense) benefit | (57) | (172)
Net income | 919 | 881
NCI held by Texas Transmission Investment LLC | (2) | (69)
Earnings attributable to common shares | 906 | 801
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Oncor Holdings |  |
Schedule of Equity Method Investments [Line Items] |  |
Operating revenues | 1,548 | 1,458
Operating expenses | (1,157) | (1,051)
Income from operations | 391 | 407
Interest expense | (185) | (150)
Income tax (expense) benefit | (40) | (49)
Net income | 179 | 223
NCI held by Texas Transmission Investment LLC | (36) | (44)
Earnings attributable to common shares | $ 143 | $ 179

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Name: | dei_LegalEntityAxis=sre_OncorElectricDeliveryHoldingsCompanyLLCMember
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Data Type: | na
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