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OTHER CONTINGENCIES AND COMMITMENTS (Nuclear Insurance and Diablo Canyon Outages) (Details) | 9 Months Ended
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Sep. 30, 2021 USD ($) nuclear_generating_unit
Long-term Purchase Commitment [Line Items] |
Number of nuclear generating units (nuclear generating unit) | nuclear_generating_unit | 2
Nuclear Electric Insurance Limited and European Mutual Association for Nuclear Insurance |
Long-term Purchase Commitment [Line Items] |
Insurance coverage, loss | $ 400,000,000
Nuclear Electric Insurance Limited |
Long-term Purchase Commitment [Line Items] |
Amount of property damage and business interruption coverage provided by NEIL for Diablo Canyon | 42,000,000
European Mutual Association for Nuclear Insurance |
Long-term Purchase Commitment [Line Items] |
Additional insurance coverage, loss | 200,000,000
Amount of property damage coverage provided by NEIL | 4,000,000
Property damage and business interruption coverage | Humboldt Bay Unit 3 | Nuclear Electric Insurance Limited |
Long-term Purchase Commitment [Line Items] |
Liability insurance coverage | 50,000,000
Property damage and business interruption coverage, nuclear incident | Diablo Canyon | Nuclear Electric Insurance Limited |
Long-term Purchase Commitment [Line Items] |
Liability insurance coverage | 3,200,000,000
Property damage and business interruption coverage, non-nuclear incident | Diablo Canyon | Nuclear Electric Insurance Limited |
Long-term Purchase Commitment [Line Items] |
Liability insurance coverage | $ 2,500,000,000

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- Definition The Utility's liability insurance for potential losses that may result from the Northern California Fires. + References No definition available. + Details
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