v3.26.1
SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - PREFERRED STOCK (Details) - USD ($)
$ / shares in Units, $ in Millions
 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Preferred Stock [Line Items]    
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
SoCalGas    
Preferred Stock [Line Items]    
Preferred stock, shares authorized (in shares) 11,000,000 11,000,000
Preferred stock, shares outstanding (in shares) 862,043 862,043
Twenty Five Dollar Par, Six Percent Series | SoCalGas    
Preferred Stock [Line Items]    
Preferred stock, par value (in dollars per share) $ 25  
Preferred stock, shares authorized (in shares) 1,000,000  
Preferred stock, dividend rate 6.00%  
Preferred stock, shares outstanding (in shares) 79,011  
Total preferred stock $ 3 $ 3
Twenty Five Dollar Par, Six Percent Series A | SoCalGas    
Preferred Stock [Line Items]    
Preferred stock, dividend rate 6.00%  
Preferred stock, shares outstanding (in shares) 783,032  
Total preferred stock $ 19 19
SoCalGas Series Preferred Stock | SoCalGas    
Preferred Stock [Line Items]    
Total preferred stock 22 22
Six Percent Series Preferred Stock    
Preferred Stock [Line Items]    
Less: 50,970 shares of the 6% Series outstanding owned by Pacific Enterprises $ (2) (2)
Six Percent Series Preferred Stock | SoCalGas    
Preferred Stock [Line Items]    
Preferred stock, dividend rate 6.00%  
Preferred stock, shares outstanding (in shares) 50,970  
Preferred Stock Of Subsidiaries    
Preferred Stock [Line Items]    
Total preferred stock $ 20 $ 20