INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARIZED FINANCIAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Equity Method Investments [Line Items]
Net income	$ 736	$ 659	$ 1,908	$ 1,316
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Oncor Holdings
Schedule of Equity Method Investments [Line Items]
Operating revenues	1,343	1,293	2,635	2,542
Operating expenses	(976)	(908)	(2,000)	(1,805)
Operating income	367	385	635	737
Interest expense	(133)	(108)	(256)	(216)
Income tax expense	(43)	(52)	(67)	(94)
Net income	197	226	296	417
Noncontrolling interest held by Texas Transmission Investment LLC	(40)	(46)	(60)	(84)
Earnings attributable to Sempra Energy	$ 157	$ 180	$ 236	$ 333