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WILDFIRE-RELATED CONTINGENCIES (Third-Party Claims, Investigations and Other Proceedings Related to the 2018 Camp Fire and 2017 Northern California Wildfires) (Details)
$ in Millions
1 Months Ended
Jan. 28, 2019
complaint
lawsuit
plaintiff
Oct. 31, 2018
USD ($)
Complaints Brought By Butte County District Attorney | Wildfires    
Loss Contingencies [Line Items]    
Settlement agreement term   4 years
Settlement expense | $   $ 1.5
Waiving of statutes of limitation, term   6 months
Pending Litigation | Subsequent Event | Complaints Against PG&E Corporation and the Utility in Sacramento County Superior Court | 2018 Camp fire    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | complaint 100  
Number of plaintiffs in lawsuit (at least) (plaintiff) | plaintiff 4,200  
Pending Litigation | Subsequent Event | Complaints Against PG&E Corporation and the Utility in Sacramento County Superior Court, Classified as Class Action | 2018 Camp fire    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | lawsuit 9  
Pending Litigation | Subsequent Event | Complaints Against PG&E Corporation and the Utility in San Francisco Counties Superior Courts | 2017 Northern California wildfires    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | complaint 750  
Number of plaintiffs in lawsuit (at least) (plaintiff) | plaintiff 3,800  
Pending Litigation | Subsequent Event | Lawsuits Against PG&E Corporation and the Utility in the Sonoma, Napa and San Francisco Counties Superior Courts, Classified As Class Actions | 2017 Northern California wildfires    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | lawsuit 5  
Pending Litigation | Subsequent Event | Subrogation Complaints Against PG&E Corporation and the Utility in San Francisco County Superior Courts | 2017 Northern California wildfires    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | complaint 48  
Pending Litigation | Subsequent Event | Subrogation Complaints Against PG&E Corporation and the Utility in Sacramento County Superior Court | 2018 Camp fire    
Loss Contingencies [Line Items]    
Number of lawsuits filed against company (lawsuit, complaint) | lawsuit 37