v3.26.1
DEBT AND CREDIT FACILITIES - NARRATIVE (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
lineOfCredit
Line of Credit Facility [Line Items]  
Total facility $ 10,200
Primary committed lines of credit | lineOfCredit 8
Ratio of indebtedness to net capital (in percent) 0.65
Letters of credit outstanding $ 202
SDG&E  
Line of Credit Facility [Line Items]  
Total facility $ 1,500
Ratio of indebtedness to net capital (in percent) 0.65
Letters of credit outstanding $ 21
SoCalGas  
Line of Credit Facility [Line Items]  
Total facility $ 1,200
Ratio of indebtedness to net capital (in percent) 0.65
Letters of credit outstanding $ 15
SI Partners and IEnova  
Line of Credit Facility [Line Items]  
Number of lines of credit | lineOfCredit 3
SI Partners  
Line of Credit Facility [Line Items]  
Maximum adjustment EBITDA allowed 5.25
ECA LNG Phase 1 | Uncommitted line of credit  
Line of Credit Facility [Line Items]  
Total facility $ 100
Line of credit, amount outstanding $ 13
Credit adjustment spread 0.10%
ECA LNG Phase 1 | Uncommitted line of credit | Interbank Equilibrium Interest Rate  
Line of Credit Facility [Line Items]  
Variable percentage rate (in percent) 1.54%
ECA LNG Phase 1 | Uncommitted line of credit | Secured Overnight Financing Rate (SOFR)  
Line of Credit Facility [Line Items]  
Variable percentage rate (in percent) 1.64%