REGULATORY MATTERS - FERC RATE MATTERS (Details) - San Diego Gas and Electric Company	6 Months Ended
Jun. 30, 2023
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%
FERC requirement, additional basis spread	0.50%

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