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WILDFIRE-RELATED CONTINGENCIES (2015 Butte Fire) (Details) - Pacific Gas & Electric Co - 2015 Butte fire
household in Thousands, $ in Millions
1 Months Ended 2 Months Ended 12 Months Ended
Jan. 31, 2019
contractor
household
complaint
plaintiff
Nov. 13, 2018
USD ($)
Sep. 06, 2018
plaintiff
Mar. 02, 2018
USD ($)
Mar. 01, 2018
USD ($)
Apr. 13, 2017
USD ($)
May 31, 2017
USD ($)
Feb. 28, 2019
USD ($)
Sep. 30, 2018
plaintiff
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
May 01, 2018
decision
May 23, 2016
contractor
Apr. 28, 2016
a
outbuilding
fatality
home
comercial_property
structure
Loss Contingencies [Line Items]                              
Number of acres burned (acre) | a                             70,868
Number of fatalities caused by fire (fatality) | fatality                             2
Number of homes destroyed by fire (home) | home                             549
Number of outbuildings damaged by fire (outbuilding) | outbuilding                             368
Number of commercial properties damaged by fire (commercial property) | comercial_property                             4
Number of structures damaged (structure) | structure                             44
Number of vegetation management contractors (contractor) | contractor                           2  
Number of plaintiffs, smaller public entities (plaintiff) | plaintiff                 5            
Number of plaintiffs, fire districts (plaintiff) | plaintiff                 3            
Number of plaintiffs, water district (plaintiff) | plaintiff                 1            
Fire fighting costs recovery requested           $ 87.0                  
Value of claims brought against the company             $ 190.0                
Reasonably possible loss to be incurred                   $ 1,100.0          
Coverage for third party liability                   922.0          
Probable insurance recoveries                   922.0          
Cumulative reimbursements from insurance policies                   7.0 $ 350.0 $ 625.0      
Reimbursements from insurance policies                   7.0          
Subsequent Event                              
Loss Contingencies [Line Items]                              
Number of complaints filed (complaint) | complaint 95                            
Number of plaintiffs (plaintiff) | plaintiff 3,900                            
Number of households represented in court (household) | household 2                            
Number of vegetation management contractors dismissed from complaints (contractor) | contractor 2                            
Reimbursements from insurance policies               $ 25.0              
Agreement Reached in Litigation to Stipulate to Judgment on Inverse Condemnation Grounds                              
Loss Contingencies [Line Items]                              
Number of previous appellate courts decisions (decision) | decision                         2    
Number of plaintiffs in lawsuit (plaintiff) | plaintiff     2                        
County of Calaveras                              
Loss Contingencies [Line Items]                              
Value of claims brought against company       $ 167.0 $ 85.0                    
Settlement reached   $ 25.4                          
Vegetation Management Contractors                              
Loss Contingencies [Line Items]                              
Cumulative reimbursements from insurance policies                   $ 60.0