SEMPRA - SEGMENT INFORMATION - SCHEDULE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting Information, Additional Information [Abstract]
ASSETS	$ 90,473		$ 90,473		$ 87,181	[1]
EQUITY METHOD AND OTHER INVESTMENTS	17,214		17,214		16,510
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT			3,830	$ 4,282
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	3,011	$ 3,335	6,651	9,895
DEPRECIATION AND AMORTIZATION	603	549	1,197	1,088
INTEREST INCOME	17	17	30	41
INTEREST EXPENSE	311	317	616	683
INCOME TAX EXPENSE (BENEFIT)	(130)	175	42	551
Equity earnings, before income tax:	160	153	294	285
Equity earnings, net of income tax	273	235	487	322
Equity earnings	433	388	781	607
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES	713	603	1,514	1,572
Operating Segments | Sempra California
Segment Reporting Information, Additional Information [Abstract]
ASSETS	54,462		54,462		53,430
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT			2,212	2,200
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	2,625	2,700	5,766	8,115
DEPRECIATION AND AMORTIZATION	528	476	1,049	944
INTEREST INCOME	5	5	8	10
INTEREST EXPENSE	209	194	414	381
INCOME TAX EXPENSE (BENEFIT)	44	(17)	127	84
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES	316	339	898	957
Operating Segments | Sempra Texas Utilities
Segment Reporting Information, Additional Information [Abstract]
ASSETS	14,940		14,940		14,392
EQUITY METHOD AND OTHER INVESTMENTS	14,927		14,927		14,380
Segment Reporting Information, Profit (Loss) [Abstract]
Equity earnings, before income tax:	2	2	4	3
Equity earnings, net of income tax	202	160	385	243
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES	202	160	385	243
Operating Segments | Sempra Infrastructure
Segment Reporting Information, Additional Information [Abstract]
ASSETS	21,131		21,131		19,430
EQUITY METHOD AND OTHER INVESTMENTS	2,286		2,286		2,129
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT			1,617	2,078
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	409	660	928	1,856
DEPRECIATION AND AMORTIZATION	73	70	145	139
INTEREST INCOME	7	6	12	21
INTEREST EXPENSE	0	25	0	120
INCOME TAX EXPENSE (BENEFIT)	(133)	201	(24)	531
Equity earnings, before income tax:	158	151	290	282
Equity earnings, net of income tax	71	75	102	79
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES	291	208	422	523
All other
Segment Reporting Information, Additional Information [Abstract]
ASSETS	963		963		967
EQUITY METHOD AND OTHER INVESTMENTS	1		1		1
EXPENDITURES FOR PROPERTY, PLANT & EQUIPMENT			1	4
Segment Reporting Information, Profit (Loss) [Abstract]
DEPRECIATION AND AMORTIZATION	2	3	3	5
INTEREST INCOME	6	6	11	10
INTEREST EXPENSE	103	99	203	183
INCOME TAX EXPENSE (BENEFIT)	(41)	(9)	(61)	(64)
EARNINGS (LOSSES) ATTRIBUTABLE TO COMMON SHARES	(96)	(104)	(191)	(151)
Adjustments and eliminations
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	1	(2)	0	(2)
Intersegment revenues and eliminations
Segment Reporting Information, Additional Information [Abstract]
ASSETS	(1,023)		(1,023)		$ (1,038)
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	(24)	(23)	(43)	(74)
INTEREST INCOME	(1)	0	(1)	0
INTEREST EXPENSE	(1)	(1)	(1)	(1)
Intersegment revenues and eliminations | Sempra California
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	5	4	10	9
Intersegment revenues and eliminations | Sempra Infrastructure
Segment Reporting Information, Profit (Loss) [Abstract]
REVENUES	$ 19	$ 19	$ 33	$ 65

[1] Derived from audited financial statements.