v3.25.2
REGULATORY MATTERS - COST OF CAPITAL (Details)
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Cost of Capital Proceeding | 2024 General Rate Case      
Public Utilities, General Disclosures [Line Items]      
Change in benchmark rate during period percentage 20.00%    
California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
CCM benchmark rate, variable rate (as a percent) 1.00%    
SDG&E | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Authorized weighting (as a percent) 100.00%    
Weighted return on rate base (as a percent)     7.67%
SDG&E | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested weighting (as a percent) 100.00%    
Weighted requested return on rate base (as a percent) 8.21%    
SDG&E | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Weighted return on rate base (as a percent)   7.45%  
SDG&E | Authorized weighting | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent) 45.25%    
SDG&E | Authorized weighting | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 46.00%    
SDG&E | Authorized weighting | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent) 2.75%    
SDG&E | Authorized weighting | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 0.00%    
SDG&E | Authorized weighting | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent) 52.00%    
SDG&E | Authorized weighting | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 54.00%    
SDG&E | Return on rate base | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)     4.34%
SDG&E | Return on rate base | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 4.62%    
SDG&E | Return on rate base | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     6.22%
SDG&E | Return on rate base | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 6.22%    
SDG&E | Return on rate base | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     10.65%
SDG&E | Return on rate base | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 11.25%    
SDG&E | Return on rate base | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)   4.34%  
SDG&E | Return on rate base | California Public Utilities Commission | Forecast | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   6.22%  
SDG&E | Return on rate base | California Public Utilities Commission | Forecast | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   10.23%  
SDG&E | Weighted return on rate base | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)     1.96%
SDG&E | Weighted return on rate base | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 2.13%    
SDG&E | Weighted return on rate base | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     0.17%
SDG&E | Weighted return on rate base | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 0.00%    
SDG&E | Weighted return on rate base | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     5.54%
SDG&E | Weighted return on rate base | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 6.08%    
SDG&E | Weighted return on rate base | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)   1.96%  
SDG&E | Weighted return on rate base | California Public Utilities Commission | Forecast | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   0.17%  
SDG&E | Weighted return on rate base | California Public Utilities Commission | Forecast | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   5.32%  
SoCalGas | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Authorized weighting (as a percent) 100.00%    
Weighted return on rate base (as a percent)     7.67%
SoCalGas | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested weighting (as a percent) 100.00%    
Weighted requested return on rate base (as a percent) 8.15%    
SoCalGas | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Weighted return on rate base (as a percent)   7.49%  
SoCalGas | Authorized weighting | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent) 45.60%    
SoCalGas | Authorized weighting | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 45.60%    
SoCalGas | Authorized weighting | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent) 2.40%    
SoCalGas | Authorized weighting | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 2.40%    
SoCalGas | Authorized weighting | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent) 52.00%    
SoCalGas | Authorized weighting | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 52.00%    
SoCalGas | Return on rate base | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)     4.54%
SoCalGas | Return on rate base | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 5.02%    
SoCalGas | Return on rate base | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     6.00%
SoCalGas | Return on rate base | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 6.00%    
SoCalGas | Return on rate base | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     10.50%
SoCalGas | Return on rate base | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 11.00%    
SoCalGas | Return on rate base | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)   4.63%  
SoCalGas | Return on rate base | California Public Utilities Commission | Forecast | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   6.00%  
SoCalGas | Return on rate base | California Public Utilities Commission | Forecast | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   10.08%  
SoCalGas | Weighted return on rate base | California Public Utilities Commission      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)     2.07%
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested debt capital structure (as a percent) 2.29%    
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     0.14%
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Preferred Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 0.14%    
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)     5.46%
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Common Equity | Proposed Cost of Capital 2026-2028      
Public Utilities, General Disclosures [Line Items]      
Requested return on equity (as a percent) 5.72%    
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Forecast      
Public Utilities, General Disclosures [Line Items]      
Approved debt capital structure (as a percent)   2.11%  
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Forecast | Preferred Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   0.14%  
SoCalGas | Weighted return on rate base | California Public Utilities Commission | Forecast | Common Equity      
Public Utilities, General Disclosures [Line Items]      
Approved return on equity (as a percent)   5.24%