DEBT AND CREDIT FACILITIES - COMMITTED LINES OF CREDIT NARRATIVE (Details)	12 Months Ended
	Dec. 31, 2025 USD ($) lender lineOfCredit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 10,200,000,000
Primary committed lines of credit | lineOfCredit	8
Number of lenders | lender	23
Lenders, percent of facility	6.00%
Committed lines of credit, capacity for issuance of letters of credit	$ 200,000,000
Line of credit, increase limit	$ 500,000,000
Maximum ratio of indebtedness to total capitalization	0.65
SDG&E
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,500,000,000
Committed lines of credit, capacity for issuance of letters of credit	100,000,000
Line of credit, increase limit	$ 250,000,000
Maximum ratio of indebtedness to total capitalization	0.65
SoCalGas
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,200,000,000
Committed lines of credit, capacity for issuance of letters of credit	150,000,000
Line of credit, increase limit	$ 250,000,000
Maximum ratio of indebtedness to total capitalization	0.65
SI Partners and IEnova
Line of Credit Facility [Line Items]
Number of lines of credit | lineOfCredit	3
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due September 2026
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 500,000,000
Variable percentage rate	0.80%
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due August 2028
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,500,000,000
Variable percentage rate	0.90%
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due December 2028
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,000,000,000
Number of lenders | lender	12
Committed lines of credit, capacity for issuance of letters of credit	$ 200,000,000
Line of credit, increase limit	$ 1,500,000,000
Variable percentage rate	0.10%
SI Partners and IEnova | SI Partners and IEnova Committed Line Of Credit Due December 2028 | Swingline Sub-Limit
Line of Credit Facility [Line Items]
Line of credit outstanding	$ 100,000,000
SI Partners
Line of Credit Facility [Line Items]
Maximum adjustment EBITDA allowed	5.25
Current guarantor obligations	$ 300,000,000
SI Partners | SI Partners and IEnova Committed Line Of Credit Due August 2028
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,500,000,000
Number of lenders | lender	12
IEnova | SI Partners and IEnova Committed Line Of Credit Due August 2028
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 1,365,000,000
Number of lenders | lender	11
Port Arthur LNG I | Port Arthur LNG Committed Line Of Credit Due March 2030
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 200,000,000
Port Arthur LNG II | Port Arthur LNG II Committed Line Of Credit Due September 2030
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 300,000,000