SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - REGULATED OPERATIONS (Details) - Oncor Holdings	Dec. 31, 2023
Oncor Electric Delivery Company LLC \| Oncor Holdings \| Sempra Texas Utilities
Schedule of Equity Method Investments [Line Items]
Ownership percentage in equity method investee	80.25%
Sharyland Utilities, LP \| Sharyland Holdings, LP
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
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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