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GENERAL INFORMATION AND OTHER FINANCIAL DATA - PRINCIPLES OF CONSOLIDATION (Details)
9 Months Ended
Sep. 30, 2024
segment
Segment Reporting Information [Line Items]  
Number of reportable segments 3
SDG&E  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
SoCalGas  
Segment Reporting Information [Line Items]  
Number of reportable segments 1
Sempra California  
Segment Reporting Information [Line Items]  
Number of reportable segments 1