v3.26.1
WILDFIRE-RELATED CONTINGENCIES (2021 Dixie Fire and 2022 Mosquito Fire) (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 10, 2026
USD ($)
Jul. 13, 2021
USD ($)
a
injury
structure
Jun. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jul. 15, 2026
claimHolder
plaintiff
complaint
Jan. 31, 2026
entity
Dec. 31, 2025
USD ($)
Sep. 06, 2022
a
fatality
structure
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   $ 2,250     $ 2,150  
Accrued Losses     100   100        
Loss contingency, costs incurred   $ 650              
Insurance receivable     521   521        
Probable of recovery         2,409        
2021 Dixie fire | Wildfire Fund                  
Loss Contingencies [Line Items]                  
Probable of recovery         1,250        
Probable of recovery received         1,010        
2021 Dixie fire | FERC TO rates                  
Loss Contingencies [Line Items]                  
Probable of recovery         97        
2021 Dixie fire | WEMA                  
Loss Contingencies [Line Items]                  
Probable of recovery         541        
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           9,062      
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       $ 400       $ 350  
Number of residential structures destroyed (structure) | structure                 44
Number of detached structures destroyed (structure) | structure                 40
Accrued Losses         50        
Insurance receivable     $ 418   418        
Probable of recovery         478        
Percentage of fire contained                 100.00%
Number of public entities | entity             5    
Loss contingency accrual, period increase (decrease)       $ 50          
Claims and legal fees received         258        
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           28      
Number of plaintiffs represented by complaints | plaintiff           2,828      
2022 Mosquito fire | Subsequent Event | Utility                  
Loss Contingencies [Line Items]                  
Damages awarded $ 22