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OTHER CONTINGENCIES AND COMMITMENTS (Schedule Environmental Remediation Liability Composed) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disclosure Commitments And Contingencies Environmental Remediation Liability Composed [Abstract]
Topock natural gas compressor station	$ 299	$ 303
Hinkley natural gas compressor station	123	132
Former manufactured gas plant sites owned by the Utility or third parties	667	659
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites	104	111
Fossil fuel-fired generation facilities and sites	70	96
Total environmental remediation liability	$ 1,263	$ 1,301

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Utility records an environmental remediation liability when site assessments indicate that remediation is probable and the Utility can reasonably estimate the loss or a range of probable amounts. The Utility records an environmental remediation liability based on the lower end of the range of estimated probable costs, unless an amount within the range is a better estimate than any other amount

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Former Manufactured Gas Plant Sites Owned By Utility Or Third Parties

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Fossil Fuel-Fired Generation Facilities Formerly Owned By Utility

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Utility-Owned Natural Gas Compressor Site Near Hinkley, California

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Utility-Owned Natural Gas Compressor Site Near Topock, Arizona

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Utility-Owned Generation Facilities (Other Than For Fossil Fuel-Fired), Other Facilities, And Third-Party Disposal Sites

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