COMMITMENTS, CONTINGENCIES AND GUARANTEES - ENVIRONMENTAL ISSUES (Details) $ in Millions |
Sep. 30, 2026
USD ($)
|
|---|---|
| Environmental Issues [Line Items] | |
| Potential monetary sanctions threshold | $ 1 |
| Potential monetary sanctions threshold (as a percent) | 1.00% |
| Environmental cost, potential monetary sanctions threshold, actual amount | $ 373 |
| San Diego Gas and Electric Company | |
| Environmental Issues [Line Items] | |
| Environmental cost, potential monetary sanctions threshold, actual amount | 19 |
| Southern California Gas Company | |
| Environmental Issues [Line Items] | |
| Environmental cost, potential monetary sanctions threshold, actual amount | $ 16 |