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WILDFIRE-RELATED CONTINGENCIES (2019 Kincade Fire, 2020 Zogg Fire, 2021 Dixie Fire and 2022 Mosquito Fire) (Details) $ in Thousands, numberOfPeople in Millions |  |  |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 25, 2022 USD ($) | Mar. 18, 2022 USD ($) | Jan. 05, 2022 USD ($) | Oct. 29, 2021 USD ($) a | Nov. 04, 2019 numberOfPeople | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Oct. 20, 2022 numberOfClaimHolder complaint notice plaintiff numberOfPlaintiff | Sep. 06, 2022 USD ($) a structure injury numberOfFatality | Apr. 28, 2022 USD ($) | Apr. 11, 2022 USD ($) position | Apr. 08, 2022 USD ($) position | Mar. 31, 2022 USD ($) | Jan. 28, 2022 notice | Jan. 27, 2022 notice | Dec. 02, 2021 transmissionLine | Nov. 18, 2021 notice | Sep. 24, 2021 felony misdemeanor | Aug. 31, 2021 USD ($) | Jul. 13, 2021 a structure injury | May 11, 2021 count | Apr. 06, 2021 misdemeanor felony | Sep. 27, 2020 a structure fatality injury | Oct. 23, 2019 a structure numberOfFatality injury
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued insurance recoveries |  |  |  |  |  |  |  | $ 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 Kincade fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 77,758
Number of fatalities (fatality) | numberOfFatality |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Number of injuries | injury |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4
Number of structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 374
Number of structures damaged (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60
Number of people part of mandatory evacuation order | numberOfPeople |  |  |  |  | 0.2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of felonies (felony) | notice |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 | 2 |  |  |  |  |  |  |  |  |
Number of misdemeanors dropped (misdemeanor) | notice |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |
Stipulation costs payable |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,250 |  |  |  |  |  |  |  |  |  |  |  |
Number of new positions headquartered (position) | position |  |  |  |  |  |  |  |  |  |  |  |  |  | 80 |  |  |  |  |  |  |  |  |  |  |  |
Stipulation costs paid |  |  |  |  |  |  |  | 1,250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of transmission lines | transmissionLine |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 70 |  |  |  |  |  |  |  |
Loss contingency liability |  |  |  |  |  | $ 901,000 |  | 901,000 | $ 769,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | 18,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fire fighting costs recovery requested |  |  | $ 90,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential loss contingency |  |  |  |  |  | 950,000 |  |  | 800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Losses |  |  |  |  |  |  | $ 150,000 | 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance receivable |  |  |  |  |  | 430,000 |  | 430,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued insurance recoveries |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 Zogg fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 56,338 |
Number of fatalities (fatality) | fatality |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |
Number of injuries | injury |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |
Number of structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 204 |
Number of structures damaged (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27 |
Number of demurrer filed (count) | notice |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |  |  |  |
Number of criminal complaints (count) | notice |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31 |  |  |  |  |  |  |
Loss contingency liability |  |  |  |  |  | 74,000 |  | 74,000 | 211,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | 137,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential loss contingency |  |  |  |  |  |  |  |  | 375,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Losses |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance receivable |  |  |  |  |  | 347,000 |  | 347,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fire suppression and other costs |  | $ 34,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  | 611,000 |  | 611,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial self-insured retention per occurrence |  |  |  |  |  | 60,000 |  | 60,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal fees |  |  |  |  |  |  |  | 32,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued insurance recoveries |  |  |  |  |  |  |  | 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Zogg Complaint, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of felonies (felony) | felony |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |
Number of misdemeanors (misdemeanor) | misdemeanor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |
Insurance Coverage for Wildfire Events |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  |  |  |  |  |  |  | $ 340,000 |  |  |  |  |  |  |  |  | $ 600,000 |  |  |  |  |
Initial self-insured retention per occurrence |  |  |  |  |  | 60,000 |  | 60,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 963,309 |  |  |  |
Number of structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,311 |  |  |  |
Number of structures damaged (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 94 |  |  |  |
Stipulation costs payable |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,750 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of new positions headquartered (position) | position |  |  |  |  |  |  |  |  |  |  |  |  | 80 |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency liability |  |  |  |  |  | 1,118,000 |  | 1,118,000 | 1,150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, costs incurred |  |  |  | $ 650,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | 32,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Potential loss contingency |  |  |  |  |  |  |  |  | $ 1,150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Losses |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance receivable |  |  |  |  |  | 553,000 |  | 553,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  | 900,000 |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of residential structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 763 |  |  |  |
Number of multi-family residential structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 |  |  |  |
Number of commercial residential structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 |  |  |  |
Number of commercial non-residential structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 148 |  |  |  |
Number of detached structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 466 |  |  |  |
Number of first responder injuries (injury) | injury |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 1,176,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued insurance recoveries |  |  |  |  |  |  |  | (10,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dixie Stipulation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | 29,750 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2022 Mosquito fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  |  |  |  |  |  |  |  | 76,788 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of fatalities (fatality) | numberOfFatality |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of injuries | injury |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of structures destroyed (structure) | structure |  |  |  |  |  |  |  |  |  |  | 78 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of structures damaged (structure) | structure |  |  |  |  |  |  |  |  |  |  | 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency liability |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  | $ 940,000 |  | 940,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of fire contained |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued insurance recoveries |  |  |  |  |  |  |  | 40,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | 2019 Kincade fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of complaints (complaint) | complaint |  |  |  |  |  |  |  |  |  | 106 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs represented by complaints | plaintiff |  |  |  |  |  |  |  |  |  | 2,670 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | 2020 Zogg fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of complaints (complaint) | complaint |  |  |  |  |  |  |  |  |  | 28 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs represented by complaints | numberOfPlaintiff |  |  |  |  |  |  |  |  |  | 496 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Penalty recommended | $ 155,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | 2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of complaints (complaint) | numberOfClaimHolder |  |  |  |  |  |  |  |  |  | 54 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs represented by complaints | numberOfClaimHolder |  |  |  |  |  |  |  |  |  | 1,444 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event | 2022 Mosquito fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of complaints (complaint) | complaint |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs represented by complaints | notice |  |  |  |  |  |  |  |  |  | 34 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FERC TO rates | 2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 106,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
FERC TO rates | 2022 Mosquito fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WEMA | 2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 367,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WEMA | 2022 Mosquito fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Probable of recovery |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
National Park | 2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  | 70,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
National Forrest | 2021 Dixie fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of acres burned (acre) | a |  |  |  | 685,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pacific Gas & Electric Co (Utility) | 2019 Kincade fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of demurrer filed (count) | count |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25 |  |  |
Number of criminal complaints (count) | count |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33 |  |  |
Loss contingency liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 40,000 |  |  |  |  |  |  |  |  |  |  |
Loss contingency, costs incurred |  |  |  |  |  |  |  | 85,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pacific Gas & Electric Co (Utility) | Sonoma Contry District Attorney | 2019 Kincade fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of felonies (felony) | felony |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |
Number of misdemeanors (misdemeanor) | misdemeanor |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28 |  |
Pacific Gas & Electric Co (Utility) | California General Fund | 2019 Kincade fire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | $ 20,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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