v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Wildfire Fund) (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Jul. 12, 2019
Public Utility, Property, Plant and Equipment [Line Items]                
Litigation liability, current $ 193     $ 193        
Wildfire Fund asset 291     291   $ 297    
Litigation contribution, net 3,500     3,500        
Amortization and accretion 126   $ 109 228 $ 185      
Utility                
Public Utility, Property, Plant and Equipment [Line Items]                
Wildfire Fund asset 291     291   $ 297    
Amortization and accretion 126   $ 109 228 $ 185      
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent                
Public Utility, Property, Plant and Equipment [Line Items]                
Wildfire fund, noncurrent $ 379     $ 379        
Wildfire Fund Asset                
Public Utility, Property, Plant and Equipment [Line Items]                
Estimated insurance recoveries   $ 295            
Wildfire Recovery Compensation Program                
Public Utility, Property, Plant and Equipment [Line Items]                
Litigation settlement loss   $ 1,300            
Wildfire Fund Asset                
Public Utility, Property, Plant and Equipment [Line Items]                
Finite-lived intangible asset, useful life             20 years 15 years