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Related Party Transactions (Tables)
 3 Months Ended
Mar. 31, 2024
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 March 31, 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 Months
 20242023
PPL Electric from PPL Services
$56 $59 
LG&E from LKS29 32 
LG&E from PPL Services11 8 
KU from LKS38 41 
KU from PPL Services11 9 
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 March 31, 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 Months
 20242023
PPL Electric from PPL Services
$56 $59 
LG&E from LKS29 32 
LG&E from PPL Services11 8 
KU from LKS38 41 
KU from PPL Services11 9 
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 March 31, 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 Months
 20242023
PPL Electric from PPL Services
$56 $59 
LG&E from LKS29 32 
LG&E from PPL Services11 8 
KU from LKS38 41 
KU from PPL Services11 9