DEBT AND CREDIT FACILITIES - UNCOMMITTED LETTERS OF CREDIT (Details) $ in Millions	Mar. 31, 2025 USD ($)
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 487
Uncommitted Letters of Credit Outstanding
Line of Credit Facility [Line Items]
Long-Term Debt	487
Uncommitted Letters of Credit Outstanding | SDG&E
Line of Credit Facility [Line Items]
Long-Term Debt	21
Uncommitted Letters of Credit Outstanding | SoCalGas
Line of Credit Facility [Line Items]
Long-Term Debt	15
Uncommitted Letters of Credit Outstanding | Other Sempra
Line of Credit Facility [Line Items]
Long-Term Debt	$ 451