OTHER CONTINGENCIES AND COMMITMENTS (Schedule Environmental Remediation Liability Composed) (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Commitments and Contingencies Disclosure [Abstract] | ||
| Topock natural gas compressor station | $ 283 | $ 315 |
| Hinkley natural gas compressor station | 99 | 99 |
| Former MGP sites owned by the Utility or third parties | 785 | 715 |
| Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites | 56 | 71 |
| Fossil fuel-fired generation facilities and sites | 16 | 17 |
| Total environmental remediation liability | $ 1,239 | $ 1,217 |