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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2020
PPL Electric Utilities Corp [Member] |
Related Party Transactions [Line Items] |
Intercompany Support Cost Allocations | PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, 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.
| 2020 |  | 2019 |  | 2018
PPL Electric from PPL Services | $ | 50 |  |  | $ | 59 |  |  | $ | 59 |
LKE from PPL Services | 27 |  |  | 28 |  |  | 26 |
PPL Electric from PPL EU Services | 176 |  |  | 152 |  |  | 148 |
LG&E from LKS | 170 |  |  | 160 |  |  | 151 |
KU from LKS | 180 |  |  | 178 |  |  | 169 |
LG And E And KU Energy LLC [Member] |
Related Party Transactions [Line Items] |
Intercompany Support Cost Allocations | PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, 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.
| 2020 |  | 2019 |  | 2018
PPL Electric from PPL Services | $ | 50 |  |  | $ | 59 |  |  | $ | 59 |
LKE from PPL Services | 27 |  |  | 28 |  |  | 26 |
PPL Electric from PPL EU Services | 176 |  |  | 152 |  |  | 148 |
LG&E from LKS | 170 |  |  | 160 |  |  | 151 |
KU from LKS | 180 |  |  | 178 |  |  | 169 |
Louisville Gas And Electric Co [Member] |
Related Party Transactions [Line Items] |
Intercompany Support Cost Allocations | PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, 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.
| 2020 |  | 2019 |  | 2018
PPL Electric from PPL Services | $ | 50 |  |  | $ | 59 |  |  | $ | 59 |
LKE from PPL Services | 27 |  |  | 28 |  |  | 26 |
PPL Electric from PPL EU Services | 176 |  |  | 152 |  |  | 148 |
LG&E from LKS | 170 |  |  | 160 |  |  | 151 |
KU from LKS | 180 |  |  | 178 |  |  | 169 |
Kentucky Utilities Co [Member] |
Related Party Transactions [Line Items] |
Intercompany Support Cost Allocations | PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, 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.
| 2020 |  | 2019 |  | 2018
PPL Electric from PPL Services | $ | 50 |  |  | $ | 59 |  |  | $ | 59 |
LKE from PPL Services | 27 |  |  | 28 |  |  | 26 |
PPL Electric from PPL EU Services | 176 |  |  | 152 |  |  | 148 |
LG&E from LKS | 170 |  |  | 160 |  |  | 151 |
KU from LKS | 180 |  |  | 178 |  |  | 169 |

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- Definition Tabular disclosure of support cost allocations from parent to subsidiary and between affiliates during the period. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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