REVENUES - CONTRACT LIABILITIES (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Contract with Customer, Liability [Roll Forward]
Contract liabilities, opening balance	$ (196)	$ (198)
Revenue from performance obligations satisfied during reporting period	55	3
Payments received in advance	(1)	(3)
Contract liabilities, closing balance	(142)	(198)
Other current liabilities
Contract with Customer, Liability [Roll Forward]
Contract liabilities, closing balance	(52)
Deferred credits and other
Contract with Customer, Liability [Roll Forward]
Contract liabilities, closing balance	(90)
SDG&E
Contract with Customer, Liability [Roll Forward]
Contract liabilities, opening balance	(72)	(75)
Revenue from performance obligations satisfied during reporting period	2	2
Contract liabilities, closing balance	(70)	$ (73)
SDG&E \| Other current liabilities
Contract with Customer, Liability [Roll Forward]
Contract liabilities, closing balance	(4)
SDG&E \| Deferred credits and other
Contract with Customer, Liability [Roll Forward]
Contract liabilities, closing balance	$ (66)