SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - AFFILIATES REVENUE AND COST OF SALES (Details) $ in Millions	1 Months Ended		12 Months Ended
	Jan. 31, 2022 MW	Jun. 30, 2015 MW	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Revenues			$ 13,185	$ 16,720	$ 14,439
Interest income			61	89	75
Interest expense			1,049	1,309	1,054
SDG&E
Related Party Transaction [Line Items]
Revenues			5,341	5,597	5,838
Interest income			5	15	5
Interest expense			525	497	449
Operating Revenue			5,341	5,597	5,838
SoCalGas
Related Party Transaction [Line Items]
Revenues			6,209	8,289	6,840
Interest income			9	9	6
Interest expense			323	285	198
Operating Revenue			$ 6,209	8,289	6,840
California Utilities | Minimum
Related Party Transaction [Line Items]
Variable percentage rate			13.00%
California Utilities | Maximum
Related Party Transaction [Line Items]
Variable percentage rate			20.00%
Related Party
Related Party Transaction [Line Items]
Revenues			$ 40	44	41
Interest income			0	0	16
Interest expense			16	15	15
Related Party | SDG&E
Related Party Transaction [Line Items]
Cost of sales			146	113	92
Operating Revenue			23	21	16
Related Party | SoCalGas
Related Party Transaction [Line Items]
Cost of sales			(5)	35	(9)
Operating Revenue			$ 169	$ 124	$ 100
ESJ JV | SDG&E
Related Party Transaction [Line Items]
Power purchase agreement term	20 years	20 years
Generating capacity (in mw) | MW	108	155