v3.26.3
SEGMENT INFORMATION - Reconciliation of Earnings Attributable To Common Shares (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Electric $ 1,391 $ 1,260 $ 3,773 $ 3,350
Natural gas 1,347 1,363 4,736 5,195
Revenues from contracts with customers 3,030 2,756 9,257 9,137
Operation and maintenance (1,219) (1,349) (3,712) (3,931)
Interest income 35 17 113 65
Interest expense (298) (403) (1,110) (1,195)
Net income, income tax (expense) benefit (14) (482) (191) (711)
Earnings attributable to common shares 877 77 2,710 1,444
Capital expenditures for property, plant and equipment     7,327 7,201
San Diego Gas and Electric Company        
Segment Reporting [Line Items]        
Electric 1,395 1,264 3,786 3,362
Natural gas 215 216 739 800
Revenues from contracts with customers 1,683 1,349 4,626 3,851
Total operating revenues 1,610 1,480 4,525 4,162
Depreciation and amortization (353) (334) (1,028) (977)
Interest income 1 0 5 2
Interest expense (148) (141) (447) (415)
Net income, income tax (expense) benefit (76) 33 (184) 12
Earnings attributable to common shares 376 324 862 780
San Diego Gas and Electric Company | Reportable Segment        
Segment Reporting [Line Items]        
Electric 1,493 1,131 3,932 3,062
Natural gas 190 218 694 789
Revenues from contracts with customers 1,683 1,349 4,626 3,851
Total other revenues (73) 131 (101) 311
Total operating revenues 1,610 1,480 4,525 4,162
Operation and maintenance (438) (451) (1,268) (1,294)
Depreciation and amortization (353) (334) (1,028) (977)
Interest income 1 0 5 2
Interest expense (148) (141) (447) (415)
Net income, income tax (expense) benefit (76) 33 (184) 12
Other segment items (220) (263) (741) (710)
Earnings attributable to common shares 376 324 862 780
Capital expenditures for property, plant and equipment     1,599 1,811
San Diego Gas and Electric Company | Electric, Non-Nuclear | Reportable Segment        
Segment Reporting [Line Items]        
Utilities (98) 132 (146) 300
San Diego Gas and Electric Company | Natural gas | Reportable Segment        
Segment Reporting [Line Items]        
Utilities 25 (1) 45 11
Southern California Gas Company        
Segment Reporting [Line Items]        
Revenues from contracts with customers 1,101 1,217 4,042 4,706
Total operating revenues 1,171 1,181 4,086 4,469
Depreciation and amortization (276) (257) (825) (750)
Interest income 1 2 4 5
Interest expense (102) (93) (303) (272)
Net income, income tax (expense) benefit 115 95 95 51
Earnings attributable to common shares (153) 46 378 573
Southern California Gas Company | Reportable Segment        
Segment Reporting [Line Items]        
Natural gas 1,101 1,217 4,042 4,706
Total other revenues 70 (36) 44 (237)
Total operating revenues 1,171 1,181 4,086 4,469
Operation and maintenance (582) (623) (1,822) (2,002)
Depreciation and amortization (276) (257) (825) (750)
Interest income 1 2 4 5
Interest expense (102) (93) (303) (272)
Net income, income tax (expense) benefit 115 95 95 51
Other segment items (480) (259) (857) (928)
Earnings attributable to common shares $ (153) $ 46 378 573
Capital expenditures for property, plant and equipment     $ 1,504 $ 1,523