SEMPRA - POTENTIAL DIVESTITURES - Schedule of Assets and Liabilities Held-for-sale (Details) - SI Partners - Disposal Group Held-for-sale $ in Millions	Sep. 30, 2025 USD ($)
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Cash and cash equivalents	$ 126
Restricted cash, current	2,889
Accounts receivable	589
Due from unconsolidated affiliates	3
Inventories	103
Other current assets	246
Restricted cash, noncurrent	3
Right-of-use assets – operating leases	202
Equity method investments	2,471
Goodwill	1,602
Other intangible assets	273
Other long-term assets	768
Property, plant and equipment, net	19,190
Total assets held for sale	28,465
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Short-term debt	897
Accounts payable	1,247
Current portion of long-term debt	49
Other current liabilities	305
Long-term debt	6,791
Due to unconsolidated affiliates	417
Deferred income taxes	901
Asset retirement obligations	93
Deferred credits and other	475
Total liabilities held for sale	$ 11,175