SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - ONCOR HOLDINGS (Details)	Dec. 31, 2024
Oncor Holdings \| Oncor Electric Delivery Company LLC
Schedule of Equity Method Investments [Line Items]
Ownership percentage held by noncontrolling owners	80.25%
Oncor Holdings \| Sempra Texas Utilities
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	100.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
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