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Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2025
PPL Electric Utilities Corp [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services and LKS charged the following amounts for the periods ended September 30, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.
Three MonthsNine Months
2025202420252024
PPL Electric from PPL Services$64 $53 $196 $159 
LG&E from LKS28 25 76 82 
LG&E from PPL Services49 15 112 46 
KU from LKS38 31 98 99 
KU from PPL Services48 15 109 45 
Louisville Gas And Electric Co [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services and LKS charged the following amounts for the periods ended September 30, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.
Three MonthsNine Months
2025202420252024
PPL Electric from PPL Services$64 $53 $196 $159 
LG&E from LKS28 25 76 82 
LG&E from PPL Services49 15 112 46 
KU from LKS38 31 98 99 
KU from PPL Services48 15 109 45 
Kentucky Utilities Co [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services and LKS charged the following amounts for the periods ended September 30, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.
Three MonthsNine Months
2025202420252024
PPL Electric from PPL Services$64 $53 $196 $159 
LG&E from LKS28 25 76 82 
LG&E from PPL Services49 15 112 46 
KU from LKS38 31 98 99 
KU from PPL Services48 15 109 45