SUBSEQUENT EVENTS (Details) - Pacific Gas & Electric Co (Utility) - Subsequent Event - SBA Communications Corporation - Wireless Licenses $ in Millions	Feb. 16, 2021 USD ($) transmissionTower
Subsequent Event [Line Items]
Duration of contract	100 years
Proceeds from sale of transmission tower license	$ 973
Proceeds from sale of transmission tower license, closing	954
Proceeds from sale of transmission tower license, initial cash proceeds	$ 945
Other tower, duration of contract	15 years
Minimum \| Effective Date Towers
Subsequent Event [Line Items]
Number of electric transmission towers \| transmissionTower	700
Number of other electric transmission towers \| transmissionTower	28,000

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Proceeds From Sale of Transmission Tower License, Initial Cash Proceeds

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Sale of Transmission Tower, Duration of Contract

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Sale of Transmission Tower, Number of Other Electric Transmission Towers

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Sale of Transmission Tower, Other Tower, Duration of Contract

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