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DEBT AND CREDIT FACILITIES - NARRATIVE (Details) $ in Millions, $ in Millions |  | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 29, 2026 USD ($) | Jul. 31, 2025 USD ($) | May 31, 2025 USD ($) | Jun. 30, 2026 USD ($) lineOfCredit | Jun. 30, 2026 MXN ($) lineOfCredit | Oct. 31, 2025 USD ($)
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 | 0.65 |
Letters of credit outstanding |  |  |  | $ 203 |  |
Line of Credit | Secured Debt | 364-Day Term Loan, Due October 2026 |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Variable percentage rate (in percent) |  |  | 0.80% |  |  |
Credit adjustment spread |  |  | 0.10% |  |  |
Debt amount |  |  | $ 1,250 |  |  |
Term of debt instrument (in years) |  |  | 364 days |  |  |
Proceeds from lines of credit |  | $ 1,250 |  |  |  |
Line of credit facility, accordion feature, increase limit |  |  |  |  |  | $ 500
Line of Credit | Secured Debt | Term Loan, Due July 2027 | Subsequent Event |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Variable percentage rate (in percent) | 0.70% |  |  |  |  |
Debt amount | $ 500 |  |  |  |  |
Term of debt instrument (in years) | 364 days |  |  |  |  |
Proceeds from lines of credit | $ 500 |  |  |  |  |
Line of credit facility, accordion feature, increase limit | $ 500 |  |  |  |  |
SDG&E |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Total facility |  |  |  | $ 1,500 |  |
Ratio of indebtedness to net capital (in percent) |  |  |  | 0.65 | 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 | 0.65 |
Letters of credit outstanding |  |  |  | $ 16 |  |
SI Partners and IEnova |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Number of lines of credit | lineOfCredit |  |  |  | 3 | 3 |
SI Partners |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Maximum adjustment EBITDA allowed |  |  |  | 5.25 | 5.25 |
ECA LNG Phase 1 | Uncommitted line of credit |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Total facility |  |  |  | $ 100 |  |
Line of credit, amount outstanding |  |  |  | $ 19 | $ 327 |
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% |  |

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