SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - PREFERRED STOCK NARRATIVE (Details) - shares	May 02, 2024	May 01, 2024	Mar. 31, 2024	Dec. 31, 2023
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)			50,000,000	50,000,000
Series A Preferred Stock | Subsequent Event
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)	0	17,250,000
Series B Preferred Stock | Subsequent Event
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)	0	5,750,000