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CONDENSED BALANCE SHEETS - SoCalGas (Parentheticals) - shares
Jun. 30, 2026
Dec. 31, 2025
Stockholders' Equity Attributable to Parent [Abstract]    
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, shares authorized (in shares) 1,125,000,000 1,125,000,000
Common stock, shares outstanding (in shares) 653,754,366 652,731,668
SoCalGas    
Stockholders' Equity Attributable to Parent [Abstract]    
Preferred stock, shares authorized (in shares) 11,000,000 11,000,000
Preferred stock, shares outstanding (in shares) 862,043 862,043
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares outstanding (in shares) 91,300,000 91,300,000