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Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2022
PPL Electric Utilities Corp [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services, LKS and PPL EU Services 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
 2022202120222021
PPL Electric from PPL Services
$51 $15 $172 $36 
PPL Electric from PPL EU Services— 48 — 147 
LG&E from LKS34 40 114 126 
KU from LKS39 43 125 132 
Louisville Gas And Electric Co [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services, LKS and PPL EU Services 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
 2022202120222021
PPL Electric from PPL Services
$51 $15 $172 $36 
PPL Electric from PPL EU Services— 48 — 147 
LG&E from LKS34 40 114 126 
KU from LKS39 43 125 132 
Kentucky Utilities Co [Member]  
Related Party Transactions [Line Items]  
Intercompany Support Cost Allocations PPL Services, LKS and PPL EU Services 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
 2022202120222021
PPL Electric from PPL Services
$51 $15 $172 $36 
PPL Electric from PPL EU Services— 48 — 147 
LG&E from LKS34 40 114 126 
KU from LKS39 43 125 132