Regulatory Assets and Liabilities - Schedule of Regulatory Liabilities (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Regulatory Liabilities | ||
| Total current | $ 490 | $ 1,347 |
| Total long-term | 11,066 | 10,159 |
| SCE | ||
| Regulatory Liabilities | ||
| Total current | 490 | 1,347 |
| Total long-term | 11,066 | 10,159 |
| Total regulatory liabilities | 11,556 | 11,506 |
| SCE | Regulatory balancing and memorandum accounts | ||
| Regulatory Liabilities | ||
| Total current | 283 | 1,144 |
| Total long-term | 2,760 | 2,023 |
| SCE | Energy derivatives | ||
| Regulatory Liabilities | ||
| Total current | 177 | 165 |
| SCE | Costs of removal | ||
| Regulatory Liabilities | ||
| Total long-term | 2,623 | 2,520 |
| SCE | Deferred income taxes | ||
| Regulatory Liabilities | ||
| Total long-term | 2,138 | 2,163 |
| SCE | Recoveries in excess of ARO liabilities | ||
| Regulatory Liabilities | ||
| Total long-term | 1,823 | 1,748 |
| SCE | Pension and other postretirement benefits | ||
| Regulatory Liabilities | ||
| Total long-term | 1,702 | 1,690 |
| SCE | Other | ||
| Regulatory Liabilities | ||
| Total current | 30 | 38 |
| Total long-term | $ 20 | $ 15 |