GENERAL INFORMATION AND OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	$ 205	$ 166	$ 574	$ 466
SDG&E
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	25	27	82	80
SoCalGas
Capitalized Financing Costs Disclosure [Line Items]
Capitalized financing costs	$ 25	$ 25	$ 75	$ 75