SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - SUMMARIZED FINANCIAL INFORMATION (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Mar. 30, 2021
Schedule of Equity Method Investments [Line Items]
Interest expense	$ (1,309)	$ (1,054)	$ (1,198)
Income tax expense	(490)	(556)	(99)
Net income	3,618	2,285	1,463
Earnings attributable to noncontrolling interests	(543)	(146)	(145)
Earnings attributable to common shares	3,030	2,094	1,254
Current assets	5,470	5,912
Current liabilities	10,090	9,899
Oncor Holdings | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Operating revenues	5,586	5,243	4,764
Operating expenses	(4,026)	(3,682)	(3,397)
Operating income (loss)	1,560	1,561	1,367
Interest expense	(536)	(445)	(413)
Income tax expense	(192)	(203)	(163)
Net income	849	893	760
Earnings attributable to noncontrolling interests	(170)	(179)	(152)
Earnings attributable to common shares	679	714	$ 608
Current assets	1,431	1,223
Noncurrent assets	34,649	31,703
Current liabilities	1,625	1,579
Noncurrent liabilities	19,727	17,405
NCI held by TTI	$ 3,338	$ 3,141
Sempra Infrastructure | ESJ
Schedule of Equity Method Investments [Line Items]
Ownership percentage held by noncontrolling owners				50.00%	50.00%