Regulatory Assets and Liabilities - Schedule of Regulatory Liabilities (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Regulatory Liabilities | ||
| Total current | $ 727 | $ 1,158 |
| Total long-term | 11,244 | 10,627 |
| SCE | ||
| Regulatory Liabilities | ||
| Total current | 727 | 1,158 |
| Total long-term | 11,244 | 10,627 |
| Total regulatory liabilities | 11,971 | 11,785 |
| SCE | Regulatory balancing and memorandum accounts | ||
| Regulatory Liabilities | ||
| Total current | 677 | 1,139 |
| Total long-term | 2,019 | 1,842 |
| SCE | Other | ||
| Regulatory Liabilities | ||
| Total current | 50 | 19 |
| Total long-term | 30 | 36 |
| SCE | Costs of removal | ||
| Regulatory Liabilities | ||
| Total long-term | 2,944 | 2,737 |
| SCE | Deferred income taxes | ||
| Regulatory Liabilities | ||
| Total long-term | 2,138 | 2,126 |
| SCE | Recoveries in excess of ARO liabilities | ||
| Regulatory Liabilities | ||
| Total long-term | 2,272 | 2,057 |
| SCE | Pension and other postretirement benefits | ||
| Regulatory Liabilities | ||
| Total long-term | $ 1,841 | $ 1,829 |