SEGMENT INFORMATION - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments	3
Number of reportable segments	3
Total assets | $	$ 110,878	$ 96,155
Oncor Electric Delivery Company LLC | Sempra Texas Utilities
Segment Reporting Information [Line Items]
Ownership interest (as a percent)	80.25%
SI Partners | Sempra Infrastructure
Segment Reporting Information [Line Items]
Ownership interest (as a percent)	70.00%
SDG&E
Segment Reporting Information [Line Items]
Number of operating segments	1
Number of reportable segments	1
Total assets | $	$ 32,682	30,773
SoCalGas
Segment Reporting Information [Line Items]
Number of operating segments	1
Number of reportable segments	1
Total assets | $	$ 27,688	$ 25,358