v3.26.3
GENERAL INFORMATION AND OTHER FINANCIAL DATA - CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance $ 39,998 $ 38,296 $ 38,793 [1] $ 37,788
Total other comprehensive income 221 5 279 (51)
Ending balance 40,784 38,286 40,784 38,286
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance [1]     31,594  
Total other comprehensive income (loss), net of tax amount, attributable to parent 198 3 251 (46)
Ending balance 33,327   33,327  
Total AOCI        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (144) (215) (197) (166)
OCI before reclassifications 164 (7) 216 (63)
Amounts reclassified from AOCI 34 10 35 17
Total other comprehensive income 198 3 251 (46)
Ending balance 54 (212) 54 (212)
Foreign currency translation adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (40) (55) (45) (66)
OCI before reclassifications (1) 5 4 16
Amounts reclassified from AOCI 39 0 39 0
Total other comprehensive income 38 5 43 16
Ending balance (2) (50) (2) (50)
Financial instruments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (14) (50) (54) 15
OCI before reclassifications 165 (11) 207 (76)
Amounts reclassified from AOCI (7) (2) (9) (2)
Total other comprehensive income 158 (13) 198 (78)
Ending balance 144 (63) 144 (63)
Pension and PBOP        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning Balance (90) (110) (98) (115)
OCI before reclassifications 0 (1) 5 (3)
Amounts reclassified from AOCI 2 12 5 19
Total other comprehensive income 2 11 10 16
Ending balance (88) (99) (88) (99)
San Diego Gas and Electric Company        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance 11,419 11,020 10,933 [2] 10,564
Ending balance 11,495 11,344 11,495 11,344
San Diego Gas and Electric Company | Total AOCI        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (6) (12) (6) (12)
Ending balance (6) (12) (6) (12)
San Diego Gas and Electric Company | Pension and PBOP        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (6) (12) (6) (12)
Ending balance (6) (12) (6) (12)
Southern California Gas Company        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Total other comprehensive income 1 6 1 9
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance 9,367 8,691 8,836 [3] 8,161
OCI before reclassifications       (2)
Amounts reclassified from AOCI 1 6 1 11
Total other comprehensive income (loss), net of tax amount, attributable to parent 1 6 1 9
Ending balance 9,193 8,743 9,193 8,743
Southern California Gas Company | Total AOCI        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Total other comprehensive income 1 6 1 9
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (17) (24) (17) (27)
Ending balance (16) (18) (16) (18)
Southern California Gas Company | Financial instruments        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (9) (10) (9) (10)
OCI before reclassifications       0
Amounts reclassified from AOCI 0 1 0 1
Total other comprehensive income (loss), net of tax amount, attributable to parent 0 1 0 1
Ending balance (9) (9) (9) (9)
Southern California Gas Company | Pension and PBOP        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Beginning balance (8) (14) (8) (17)
OCI before reclassifications       (2)
Amounts reclassified from AOCI 1 5 1 10
Total other comprehensive income (loss), net of tax amount, attributable to parent 1 5 1 8
Ending balance $ (7) $ (9) $ (7) $ (9)
[1] Derived from audited financial statements.
[2] Derived from audited financial statements.
[3] Derived from audited financial statements.