v3.26.3
SEMPRA - EQUITY AND EARNINGS PER COMMON SHARE - PREFERRED STOCK (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2025
Sep. 30, 2026
Aug. 31, 2026
Preferred Stock [Line Items]      
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000  
Southern California Gas Company      
Preferred Stock [Line Items]      
Preferred stock, par value (in dollars per share)     $ 25.00
Preferred stock, shares authorized (in shares) 11,000,000 5,000,000  
Preferred stock, shares outstanding (in shares) 862,043 0  
Twenty Five Dollar Par, Six Percent Series | Southern California Gas Company      
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    
Twenty Five Dollar Par, Six Percent Series A | Southern California Gas Company      
Preferred Stock [Line Items]      
Preferred stock, dividend rate 6.00%    
Preferred stock, shares outstanding (in shares) 783,032    
Total preferred stock $ 19    
SoCalGas Series Preferred Stock | Southern California Gas Company      
Preferred Stock [Line Items]      
Total preferred stock 22    
Six Percent Series Preferred Stock      
Preferred Stock [Line Items]      
Less: 50,970 shares of the 6% Series outstanding owned by Pacific Enterprises $ (2)    
Six Percent Series Preferred Stock | Southern California Gas Company      
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