REGULATORY MATTERS - FERC RATE MATTERS (Details) - SDG&E - FERC	Mar. 31, 2026	Feb. 28, 2026
TO5 Settlement
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
Public Utilities, General Disclosures [Line Items]
FERC requirement to maintain common equity ratio at or above, base (as a percent)	10.28%	10.10%
Hypothetical capital structure, common equity percentage	54.00%