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CONDENSED BALANCE SHEETS - SoCalGas (Parentheticals) - shares | Sep. 30, 2025 | Dec. 31, 2024
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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) | 652,525,871 | 650,629,876
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

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