v3.26.3
WILDFIRE-RELATED CONTINGENCIES (2021 Dixie Fire and 2022 Mosquito Fire) (Details)
$ in Millions
 3 Months Ended 9 Months Ended
Aug. 13, 2026
USD ($)
Jul. 13, 2021
USD ($)
a
structure
injury
Sep. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2026
USD ($)
Oct. 14, 2026
claimHolder
complaint
plaintiff
Jan. 31, 2026
entity
Dec. 31, 2025
USD ($)
Sep. 06, 2022
a
structure
fatality
injury
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                
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                
Estimated losses       $ 2,250         $ 2,150  
Accrued Losses       $ 100   $ 100        
Loss contingency, costs incurred   $ 650                
Insurance receivable     $ 521     521        
Probable of recovery           2,413        
2021 Dixie fire | Wildfire Fund                    
Loss Contingencies [Line Items]                    
Probable of recovery           1,250        
Probable of recovery received           1,050        
2021 Dixie fire | FERC TO rates                    
Loss Contingencies [Line Items]                    
Probable of recovery           98        
2021 Dixie fire | WEMA                    
Loss Contingencies [Line Items]                    
Probable of recovery           544        
2021 Dixie fire | National Park                    
Loss Contingencies [Line Items]                    
Number of acres burned (acre) | a   70,000                
2021 Dixie fire | National Forrest                    
Loss Contingencies [Line Items]                    
Number of acres burned (acre) | a   685,000                
2021 Dixie fire | Subsequent Event                    
Loss Contingencies [Line Items]                    
Number of complaints (complaint) | claimHolder             190      
Number of plaintiffs represented by complaints | claimHolder             9,061      
2022 Mosquito fire                    
Loss Contingencies [Line Items]                    
Number of acres burned (acre) | a                   76,788
Number of fatalities (fatality) | fatality                   0
Number of injuries | injury                   0
Number of structures destroyed (structure) | structure                   78
Number of structures damaged (structure) | structure                   13
Loss contingency liability     475     475     $ 350  
Number of residential structures destroyed (structure) | structure                   44
Number of detached structures destroyed (structure) | structure                   40
Accrued Losses           125        
Insurance receivable     496     496        
Probable of recovery           556        
Percentage of fire contained                   100.00%
Number of public entities | entity               5    
Loss contingency accrual, period increase (decrease)     $ 75   $ 50          
Claims and legal fees received           369        
2022 Mosquito fire | Utility                    
Loss Contingencies [Line Items]                    
Damages awarded $ 22                  
2022 Mosquito fire | Wildfire Fund                    
Loss Contingencies [Line Items]                    
Probable of recovery           0        
2022 Mosquito fire | FERC TO rates                    
Loss Contingencies [Line Items]                    
Probable of recovery           6        
2022 Mosquito fire | WEMA                    
Loss Contingencies [Line Items]                    
Probable of recovery           $ 54        
2022 Mosquito fire | Subsequent Event                    
Loss Contingencies [Line Items]                    
Number of complaints (complaint) | complaint             24      
Number of plaintiffs represented by complaints | plaintiff             2,651