INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARIZED FINANCIAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Equity Method Investments [Line Items]
Net income (loss)	$ 561	$ (632)	$ 1,877	$ 751
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Oncor Holdings
Schedule of Equity Method Investments [Line Items]
Operating revenues	1,438	1,286	3,980	3,572
Operating expenses	(929)	(866)	(2,734)	(2,531)
Operating (loss) income	509	420	1,246	1,041
Interest expense	(115)	(104)	(331)	(308)
Income tax expense	(70)	(54)	(164)	(124)
Net income (loss)	315	255	732	587
Noncontrolling interest held by Texas Transmission Investment LLC	(62)	(51)	(146)	(118)
Earnings attributable to Sempra Energy	$ 253	$ 204	$ 586	$ 469