SEGMENT INFORMATION - Schedule of Segment Information Income Statement and Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT	$ 10,612	$ 8,215	$ 8,397
Revenues	13,702	13,185	16,720
Disposal Group Held-for-sale | SI Partners
Revenues from External Customers and Long-Lived Assets [Line Items]
Equity method investments held for sale	2,566
Property, plant and equipment, net	21,356
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	12,136	11,623	14,973
United States | Disposal Group Held-for-sale | SI Partners
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	12,724
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,566	1,562	1,747
Mexico | Disposal Group Held-for-sale | SI Partners
Revenues from External Customers and Long-Lived Assets [Line Items]
Property, plant and equipment, net	8,632
Sempra Infrastructure | Cameron LNG | Deferred Credits and Other | Promissory Note for SDSRA Distribution | Corporate Joint Venture
Revenues from External Customers and Long-Lived Assets [Line Items]
Current guarantor obligations	17			$ 22
Operating Segments
Revenues from External Customers and Long-Lived Assets [Line Items]
CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT	10,606	8,212	8,392
Operating Segments | Sempra California
Revenues from External Customers and Long-Lived Assets [Line Items]
CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT	4,543	4,753	4,560
Revenues	11,818	11,382	13,761
Operating Segments | Sempra Infrastructure
Revenues from External Customers and Long-Lived Assets [Line Items]
CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT	6,063	3,459	3,832
Revenues	1,965	1,882	3,071
Parent and other
Revenues from External Customers and Long-Lived Assets [Line Items]
CAPITAL EXPENDITURES FOR PROPERTY, PLANT AND EQUIPMENT	$ 6	$ 3	$ 5