CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Preferred stock	Common stock	Retained earnings	Accumulated other comprehensive income (loss)	Sempra shareholders' equity	Non- controlling interests	Preferred Class A	Preferred Class A Preferred stock	Preferred Class A Common stock	Preferred Class B	Preferred Class B Preferred stock	Preferred Class B Common stock	Preferred Class B Retained earnings	Preferred Class B Sempra shareholders' equity	Preferred Class C	Preferred Class C Retained earnings	Preferred Class C Sempra shareholders' equity
Beginning Balance at Dec. 31, 2020	$ 24,934	$ 3,147	$ 7,053	$ 13,673	$ (500)	$ 23,373	$ 1,561
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,463			1,318		1,318	145
Other comprehensive income (loss)	171				160	160	11
Share-based compensation expense	63		63			63
Preferred stock dividends declared											$ (19)			$ (19)	$ (19)	$ (44)	$ (44)	$ (44)
Common stock dividends declared	(1,379)			(1,379)		(1,379)
Preferred dividends of subsidiary	(1)			(1)		(1)
Conversion of stock								$ 0	$ (1,693)	$ 1,693	$ 0	$ (565)	$ 565
Issuances of stock	5		5			5
Repurchases of common stock	(339)		(339)			(339)
Contributions	4						4
Purchases	(152)		1,459		(44)	1,415	(1,567)
Sales	2,712		1,363		66	1,429	1,283
Deconsolidation	1						1
Ending balance at Dec. 31, 2021	27,419	889	11,862	13,548	(318)	25,981	1,438
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,285			2,139		2,139	146
Other comprehensive income (loss)	228				174	174	54
Share-based compensation expense	71		71			71
Preferred stock dividends declared																(44)	(44)	(44)
Common stock dividends declared	(1,441)			(1,441)		(1,441)
Preferred dividends of subsidiary	(1)			(1)		(1)
Issuances of stock	4		4			4
Repurchases of common stock	(478)		(478)			(478)
Contributions	31						31
Distributions	(237)						(237)
Sales	1,419		701		9	710	709
Ending balance at Dec. 31, 2022	29,256	889	12,160	14,201	(135)	27,115	2,141
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,618			3,075		3,075	543
Other comprehensive income (loss)	3				31	31	(28)
Share-based compensation expense	80		80			80
Preferred stock dividends declared																$ (44)	$ (44)	$ (44)
Common stock dividends declared	(1,499)			(1,499)		(1,499)
Preferred dividends of subsidiary	(1)			(1)		(1)
Issuances of stock	144		144			144
Repurchases of common stock	(32)		(32)			(32)
Contributions	1,625		(145)			(145)	1,770
Distributions	(730)						(730)
Sales	1,234		(3)		(46)	(49)	1,283
Ending balance at Dec. 31, 2023	$ 33,654	$ 889	$ 12,204	$ 15,732	$ (150)	$ 28,675	$ 4,979