v3.26.1
GENERAL INFORMATION AND OTHER FINANCIAL DATA - OTHER INCOME (EXPENSE), NET (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Other Income [Line Items]        
AFUDC equity $ 38 $ 46 $ 80 $ 87
Investment gains, net 25 23 26 25
Losses on foreign exchange instruments, net (41) (1) (32) (1)
Foreign currency transaction gains, net 7 2 6 6
Non-service components of net periodic benefit cost 17 (31) 46 (8)
Interest on regulatory balancing accounts, net 23 20 42 41
Sundry, net (2) 0 (1) 0
Total 67 59 167 150
SDG&E        
Other Income [Line Items]        
AFUDC equity 16 23 33 42
Non-service components of net periodic benefit cost (1) (5) 10 4
Interest on regulatory balancing accounts, net 13 15 25 26
Sundry, net (4) (2) (6) (1)
Total 24 31 62 71
SoCalGas        
Other Income [Line Items]        
AFUDC equity 15 18 30 36
Non-service components of net periodic benefit cost 21 (23) 42 (6)
Interest on regulatory balancing accounts, net 10 5 17 15
Sundry, net (5) (2) (5) (5)
Total $ 41 $ (2) $ 84 $ 40