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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
Other $ 117 $ 76    
Allowance For Doubtful Accounts [Member]        
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount 140 154 $ 130 $ 95
Additions charged to income 84 109 87  
Deductions 98 85 52  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Adjusted for CECL, Amount     130  
Other 2 2 3  
PPL Electric Utilities Corp [Member]        
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
Other 29 8    
PPL Electric Utilities Corp [Member] | Allowance For Doubtful Accounts [Member]        
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]        
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount 39 41 50 $ 33
Additions charged to income 33 56 52  
Deductions 35 65 35  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Adjusted for CECL, Amount     50  
Other $ 43 $ 39 $ 41