GENERAL INFORMATION AND OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	$ 174	$ 145
SDG&E
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	25	26
SoCalGas
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	$ 25	$ 24