v3.26.3
SEGMENT INFORMATION - Schedule of Segment Information Balance Sheet (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Jun. 30, 2021
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS $ 118,024 $ 110,878 [1]  
EQUITY METHOD INVESTMENTS 20,161 17,618  
Disposal Group Held-for-sale | SI Partners      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
Equity method investment, held for sale 2,748 2,566  
Disposal Group Held-for-sale | SI Partners | Cameron LNG JV      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
Equity method investment, held for sale 1,323 1,242  
Sempra Texas Utilities      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
EQUITY METHOD INVESTMENTS 20,145 17,601  
Sempra Infrastructure      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
EQUITY METHOD INVESTMENTS 16 17  
Sempra Infrastructure | Cameron LNG JV | Balance Sheet Location [Axis]: us-gaap:DeferredCreditsAndOtherLiabilities | Promissory Note for SDSRA Distribution | Corporate Joint Venture      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
Guarantees, carrying value 16 17 $ 22
Operating Segments      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS 117,952 110,893  
Operating Segments | Sempra California      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS 61,989 60,364  
Operating Segments | Sempra Texas Utilities      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS 20,309 17,733  
Operating Segments | Sempra Infrastructure      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS 35,654 32,796  
Parent and other      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS 1,245 1,084  
Intersegment eliminations      
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]      
ASSETS $ (1,173) $ (1,099)  
[1] Derived from audited financial statements.