v3.25.2
GENERAL INFORMATION AND OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current $ 3 $ 13 [1]
Total due to unconsolidated affiliates – noncurrent (359) (352) [1]
Related Party    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 3 13
Total due to unconsolidated affiliates – noncurrent (359) (352)
Total due to unconsolidated affiliates – current (8) 0 [1]
Various affiliates    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 3 5
Tax Sharing Arrangement | Related Party    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 0 8
Total due to unconsolidated affiliates – current (8) 0
SDG&E    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 9 0 [1]
SDG&E | Related Party    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 9 0
Total due to unconsolidated affiliates – current (49) (59) [1]
SDG&E | Various affiliates    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – current (8) (3)
SDG&E | Subsidiary of common parent    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 9 0
Total due to unconsolidated affiliates – current 0 (14)
SDG&E | Due to/from Sempra Energy    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – current (41) (42)
Income taxes due from (to) Sempra 33 38
SoCalGas    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 2 16 [1]
SoCalGas | Related Party    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 2 16
Total due to unconsolidated affiliates – current (43) (38) [1]
SoCalGas | Various affiliates    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 2 2
SoCalGas | Subsidiary of common parent    
Related Party Transaction [Line Items]    
Total due from unconsolidated affiliates – current 0 14
Total due to unconsolidated affiliates – current (9) 0
SoCalGas | Due to/from Sempra Energy    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – current (34) (38)
Income taxes due from (to) Sempra 11 (6)
5.5% Note due January 14, 2026 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ 0 (8)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due July 14, 2026 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ 0 (12)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due January 19, 2027 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ 0 (15)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due July 21, 2027 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ (9) (19)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due January 19, 2028 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ (49) (48)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due July 18, 2028 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ (42) (41)
Stated rate of debt (as a percent) 5.50%  
5.5% Note due January 22, 2029 | TAG Pipeline | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ (45) 0
Stated rate of debt (as a percent) 5.50%  
5.74% Note due December 17, 2029 | TAG JV Norte | Related Party    
Related Party Transaction [Line Items]    
Total due to unconsolidated affiliates – noncurrent $ (214) $ (209)
Stated rate of debt (as a percent) 5.74%  
[1] Derived from audited financial statements.