SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - NET INCOME ATTRIBUTABLE TO SEMPRA AND TRANSFERS (TO) FROM NCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net of tax amount, attributable to parent	$ 2,862	$ 3,075	$ 2,139
(Decrease) increase in shareholders’ equity for sales of NCI		(49)	710
Net transfers (to) from NCI		(49)	710
Change from net income attributable to Sempra and transfers (to) from NCI		$ 3,026	$ 2,849