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Related Party Transactions (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
PPL Electric Utilities Corp [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes Receivable from affiliates |  |  | $ 222
Financing Receivable, after Allowance for Credit Loss, Related Party, Type [Extensible Enumeration] |  |  | CEP Reserves, Inc
PPL Electric Utilities Corp [Member] | PPL Services [Member] |  |  |
Support Costs (Details) [Abstract] |  |  |
Related Party Transaction, Amounts of Transaction | $ 64 | $ 56 |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable | 4 |  | $ 7
PPL Electric Utilities Corp [Member] | CEP Reserves, Inc |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Intercompany note with affiliate maximum borrowing capacity | 800 |  |
PPL Electric Utilities Corp [Member] | Accounts receivable from affiliates [Member] | PPL Services [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable |  |  | 4
PPL Electric Utilities Corp [Member] | Other Noncurrent Assets [Member] | PPL Services [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
VEBA Funds Receivable |  |  | 3
Louisville Gas And Electric Co [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes Payable to affiliates | $ 0 |  | $ 43
Notes Payable, Related Party, Type [Extensible Enumeration] | Affiliated Entity [Member] |  | Related Party
Louisville Gas And Electric Co [Member] | PPL Services [Member] |  |  |
Support Costs (Details) [Abstract] |  |  |
Related Party Transaction, Amounts of Transaction | $ 20 | 11 |
Louisville Gas And Electric Co [Member] | Parent And Affiliate [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 661 |  |
Louisville Gas And Electric Co [Member] | LKS [Member] |  |  |
Support Costs (Details) [Abstract] |  |  |
Related Party Transaction, Amounts of Transaction | 30 | 29 |
Kentucky Utilities Co [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Notes Payable to affiliates | $ 8 |  | $ 73
Notes Payable, Related Party, Type [Extensible Enumeration] | Affiliated Entity [Member] |  | Related Party
Kentucky Utilities Co [Member] | PPL Services [Member] |  |  |
Support Costs (Details) [Abstract] |  |  |
Related Party Transaction, Amounts of Transaction | $ 19 | 11 |
Kentucky Utilities Co [Member] | Parent And Affiliate [Member] |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 433 |  |
Kentucky Utilities Co [Member] | LKS [Member] |  |  |
Support Costs (Details) [Abstract] |  |  |
Related Party Transaction, Amounts of Transaction | $ 38 | $ 38 |

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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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