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OTHER CONTINGENCIES AND COMMITMENTS (Transmission Owner Rate) (Details) - USD ($) $ in Millions |  |  | 61 Months Ended |
--- | --- | --- | --- | ---
Mar. 17, 2022 | Sep. 21, 2018 | Mar. 31, 2022 | Jun. 30, 2022
Transmission Owner Rate Case Revenue |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Regulatory liabilities |  |  |  | $ 357.0
Regulatory assets |  |  |  | $ 223.0
Pacific Gas & Electric Co (Utility) |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Increase in regulatory liabilities |  |  | $ 62.5 |
Pacific Gas & Electric Co (Utility) | Electric |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Requested revenue rate |  | 98.85% |  |
Requested return on equity rate | 9.26% |  |  |
Requested return on equity rate, incentive component | 0.50% |  |  |
Actual return on equity rate | 9.76% |  |  |

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