SEMPRA - INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARIZED FINANCIAL INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule of Equity Method Investments [Line Items]
Interest expense	$ (311)	$ (317)	$ (616)	$ (683)
Income tax benefit (expense)	130	(175)	(42)	(551)
Net income	871	736	1,752	1,908
NCI held by Texas Transmission Investment LLC	(146)	(121)	(215)	(313)
Earnings attributable to common shares	713	603	1,514	1,572
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Oncor Holdings
Schedule of Equity Method Investments [Line Items]
Operating revenues	1,492	1,343	2,950	2,635
Operating expenses	(1,043)	(976)	(2,094)	(2,000)
Income from operations	449	367	856	635
Interest expense	(161)	(133)	(311)	(256)
Income tax benefit (expense)	(55)	(43)	(104)	(67)
Net income	248	197	471	296
NCI held by Texas Transmission Investment LLC	(50)	(40)	(94)	(60)
Earnings attributable to common shares	$ 198	$ 157	$ 377	$ 236