REGULATORY MATTERS - FERC RATE MATTERS (Details) - SDG&E	Jun. 30, 2025	Oct. 31, 2024	Sep. 30, 2024
Public Utilities, General Disclosures [Line Items]
FERC requirement to maintain common equity ratio at or above, base (as a percent)			10.10%
TO5 Settlement \| FERC
Public Utilities, General Disclosures [Line Items]
FERC requirement to maintain common equity ratio, at or above (percent)	10.60%
FERC requirement to maintain common equity ratio at or above, base (as a percent)	10.10%
TO6 Filing \| FERC
Public Utilities, General Disclosures [Line Items]
FERC requirement to maintain common equity ratio, at or above (percent)		12.25%
FERC requirement to maintain common equity ratio at or above, base (as a percent)		11.75%