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Related Party Transactions (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
PPL Electric Utilities Corp [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes Receivable, Related Parties, Current | $ 0 | $ 499 |
PPL Electric Utilities Corp [Member] | PPL Services [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | 241 | 54 | $ 50
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable |  | 11 |
PPL Electric Utilities Corp [Member] | PPL Services [Member] | Accounts receivable from affiliates [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable |  | 10 |
PPL Electric Utilities Corp [Member] | PPL Services [Member] | Other Noncurrent Assets [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable |  | 1 |
PPL Electric Utilities Corp [Member] | PPL EU Services [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | 0 | 222 | 176
PPL Electric Utilities Corp [Member] | PPL Energy Funding [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Intercompany note with affiliate maximum borrowing capacity | 1,200 |  |
Notes Receivable, Related Parties, Current | 0 | 499 |
PPL Electric Utilities Corp [Member] | CEP Reserves, Inc. |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Intercompany note with affiliate maximum borrowing capacity | 500 |  |
Notes Receivable, Related Parties, Current | 0 | 0 |
Louisville Gas And Electric Co [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes payable to affiliates | 0 | 324 |
Louisville Gas And Electric Co [Member] | PPL Services [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | 13 | 3 | 2
Louisville Gas And Electric Co [Member] | Parent And Affiliate [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes payable to affiliates | 0 | 324 |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 250 |  |
Louisville Gas And Electric Co [Member] | LKS [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | 153 | 169 | 170
Kentucky Utilities Co [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes payable to affiliates | 0 | 294 |
Kentucky Utilities Co [Member] | PPL Services [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | 14 | 3 | 2
Kentucky Utilities Co [Member] | Parent And Affiliate [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes payable to affiliates | 0 | 294 |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 250 |  |
Kentucky Utilities Co [Member] | LKS [Member] |  |  |
Related Party Transactions [Line Items] |  |  |
Related Party Transaction, Amounts of Transaction | $ 171 | $ 179 | $ 180

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- Definition Intercompany receivable related to IRS private letter ruling permitting a transfer of excess funds from the PPL Bargaining Unite Retiree Health Plan VEBA to a new subaccount within the VEBA to be used to pay medical claims of active bargaining unit employees + References No definition available. + Details
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