v3.26.1
SEGMENT INFORMATION - Revenue By Services (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Energy-related businesses $ 475 $ 499 $ 881 $ 880
Revenues from contracts with customers 2,799 2,700 6,227 6,381
Revenues 2,997 3,000 6,652 6,802
Operating Segments After Reconciling Items And Eliminations        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenues from contracts with customers 2,799 2,700 6,227 6,381
Total other revenues 198 300 425 421
Operating Segments After Reconciling Items And Eliminations | Sempra California        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Operating revenues 2,569 2,442 5,780 5,899
Energy-related businesses 0 0 0 0
Revenues from contracts with customers 2,569 2,442 5,780 5,899
Utilities (65) 41 (54) (21)
Energy-related businesses 0 0 0 0
Total other revenues (65) 41 (54) (21)
Operating Segments After Reconciling Items And Eliminations | Sempra Infrastructure        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Operating revenues 18 18 45 44
Energy-related businesses 212 240 402 438
Revenues from contracts with customers 230 258 447 482
Utilities 0 0 0 0
Energy-related businesses 263 259 479 442
Total other revenues 263 259 479 442
Segment revenues        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenues 3,023 3,020 6,697 6,847
Segment revenues | Sempra California        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenues from contracts with customers 2,576 2,449 5,796 5,912
Revenues 2,511 2,490 5,742 5,891
Segment revenues | Sempra Infrastructure        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenues from contracts with customers 251 275 481 519
Revenues 512 530 955 956
Intersegment revenues and eliminations        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Revenues (26) (20) (45) (45)
Intersegment revenues and eliminations | Sempra California        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Operating revenues (7) (7) (16) (13)
Energy-related businesses 0 0 0 0
Revenues (7) (7) (16) (13)
Intersegment revenues and eliminations | Sempra Infrastructure        
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]        
Operating revenues 0 0 0 0
Energy-related businesses (19) (13) (29) (32)
Revenues $ (19) $ (13) $ (29) $ (32)