SEMPRA - SEGMENT INFORMATION - Narrative (Details)	12 Months Ended
Dec. 31, 2023 segment
Segment Reporting Information [Line Items]
Number of reportable segments	3
Sharyland Utilities \| Sempra Texas Utilities
Segment Reporting Information [Line Items]
Ownership interest (as a percent)	50.00%
SI Partners \| Sempra Infrastructure
Segment Reporting Information [Line Items]
Ownership interest (as a percent)	70.00%
Oncor Holdings \| Oncor Electric Delivery Company LLC \| Sempra Texas Utilities
Segment Reporting Information [Line Items]
Ownership interest (as a percent)	80.25%

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-18

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration