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v3.21.2

Related Party Transactions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
PPL Electric Utilities Corp [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Notes receivable from affiliate | $ 1,075 |  | $ 1,075 |  | $ 0
PPL Electric Utilities Corp [Member] | PPL Services [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | 11 | $ 14 | 21 | $ 26 |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
VEBA Funds Receivable | 17 |  | 17 |  | 22
PPL Electric Utilities Corp [Member] | PPL EU Services [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | 49 | 41 | 99 | 82 |
PPL Electric Utilities Corp [Member] | PPL Energy Funding [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany note with affiliate maximum borrowing capacity | 1,200 |  | 1,200 |  |
Notes receivable from affiliate |  | 1,075 |  | 1,075 | 0
PPL Electric Utilities Corp [Member] | Accounts receivable from affiliates [Member] | PPL Services [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
VEBA Funds Receivable | 10 |  | 10 |  | 10
PPL Electric Utilities Corp [Member] | Other Noncurrent Assets [Member] | PPL Services [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
VEBA Funds Receivable | 7 |  | 7 |  | 12
Louisville Gas And Electric Co [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Notes Payable, Related Parties, Current | 282 |  | 282 |  | 0
Louisville Gas And Electric Co [Member] | Parent And Affiliate [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Money Pool Agreement Maximum Borrowing Capacity | 325 |  | 325 |  |
Notes Payable, Related Parties, Current | 0 |  | 0 |  | 0
Louisville Gas And Electric Co [Member] | LKS [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | 44 | 44 | 86 | 82 |
Kentucky Utilities Co [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Notes Payable, Related Parties, Current | 226 |  | 226 |  | 0
Kentucky Utilities Co [Member] | Parent And Affiliate [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Money Pool Agreement Maximum Borrowing Capacity | 300 |  | 300 |  |
Notes Payable, Related Parties, Current | 0 |  | 0 |  | $ 0
Kentucky Utilities Co [Member] | LKS [Member] |  |  |  |  |
Support Costs (Details) [Abstract] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | 45 | $ 46 | 89 | $ 87 |
LGE [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Borrowings Outstanding | 282 |  | 282 |  |
KU [Member] |  |  |  |  |
Intercompany Borrowings (Numeric) [Abstract] |  |  |  |  |
Intercompany Borrowings Outstanding | $ 226 |  | $ 226 |  |

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