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v3.25.2

Related Party Transactions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
PPL Electric Utilities Corp [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Notes Receivable from affiliates | $ 0 |  | $ 0 |  | $ 222
Financing Receivable, after Allowance for Credit Loss, Related Party, Name [Extensible Enumeration] | Individually Immaterial Counterparties [Member] |  | Individually Immaterial Counterparties [Member] |  |
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 | $ 67 | $ 53 | $ 131 | $ 109 |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
VEBA Funds Receivable | 1 |  | 1 |  | $ 7
PPL Electric Utilities Corp [Member] | CEP Reserves, Inc |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany note with affiliate maximum borrowing capacity | 800 |  | 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 |  | $ 0 |  | $ 43
Notes Payable, Related Party, Type [Extensible Enumeration] | Affiliated Entity [Member] |  | Affiliated Entity [Member] |  | Related Party
Louisville Gas And Electric Co [Member] | PPL Services [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 42 | 20 | $ 62 | 31 |
Louisville Gas And Electric Co [Member] | Parent And Affiliate [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 592 |  | 592 |  |
Louisville Gas And Electric Co [Member] | LKS [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | 18 | 28 | 48 | 57 |
Kentucky Utilities Co [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Notes Payable to affiliates | $ 46 |  | $ 46 |  | $ 73
Notes Payable, Related Party, Type [Extensible Enumeration] | Affiliated Entity [Member] |  | Affiliated Entity [Member] |  | Related Party
Kentucky Utilities Co [Member] | PPL Services [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 42 | 19 | $ 61 | 30 |
Kentucky Utilities Co [Member] | Parent And Affiliate [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Money Pool Agreement Unused Borrowing Capacity | 329 |  | 329 |  |
Kentucky Utilities Co [Member] | LKS [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 22 | $ 30 | $ 60 | $ 68 |

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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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