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Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2023
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
 2023202220232022
PPL Electric from PPL Services
$52 $51 $166 $172 
LG&E from LKS25 34 85 114 
LG&E from PPL Services10 — 30 — 
KU from LKS35 39 110 125 
KU from PPL Services11 — 33 — 
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
 2023202220232022
PPL Electric from PPL Services
$52 $51 $166 $172 
LG&E from LKS25 34 85 114 
LG&E from PPL Services10 — 30 — 
KU from LKS35 39 110 125 
KU from PPL Services11 — 33 — 
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
 2023202220232022
PPL Electric from PPL Services
$52 $51 $166 $172 
LG&E from LKS25 34 85 114 
LG&E from PPL Services10 — 30 — 
KU from LKS35 39 110 125 
KU from PPL Services11 — 33 —