OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Environmental Remediation Contingencies) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Site Contingency [Line Items]
Topock natural gas compressor station	$ 301	$ 315
Hinkley natural gas compressor station	96	99
Former MGP sites owned by the Utility or third parties	867	715
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites	75	71
Fossil fuel-fired generation facilities and sites	$ 17	$ 17
Utility
Site Contingency [Line Items]
Remediation cost recovery percentage	90.00%
Maximum
Site Contingency [Line Items]
Topock natural gas compressor station	$ 498
Hinkley natural gas compressor station	218
Former MGP sites owned by the Utility or third parties	1,400
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites	151
Fossil fuel-fired generation facilities and sites	$ 30