SEMPRA – INVESTMENTS IN UNCONSOLIDATED ENTITIES - Other Equity 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)
Net income	3,618	2,285	1,463
Current assets	5,470	5,912
Current liabilities	10,090	9,899
ESJ | Sempra Infrastructure
Schedule of Equity Method Investments [Line Items]
Ownership percentage held by noncontrolling owners				50.00%	50.00%
Parent and other:
Schedule of Equity Method Investments [Line Items]
Operating revenues	3,083	2,959	2,721
Operating expenses	(776)	(772)	(719)
Operating income (loss)	2,307	2,187	2,002
Interest expense	(570)	(505)	(548)
Net income	1,499	1,537	$ 1,388
Current assets	1,216	1,008
Noncurrent assets	14,826	14,786
Current liabilities	1,255	1,147
Noncurrent liabilities	$ 10,786	$ 11,130