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Revenue from Contracts with Customers (Tables) | 9 Months Ended
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Sep. 30, 2024
Revenue from Contracts with Customers [Line Items] |
Disaggregation of Revenue [Table Text Block] | The following tables show revenues from contracts with customers disaggregated by customer class for the periods ended September 30.
| Three Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 367 |  |  | $ | 111 |  |  | $ | 12 |  |  | $ | 15 |  |  | $ | — |  |  | $ | — |  |  | $ | 204 |  |  | $ | 709 |
KY Regulated | 378 |  |  | 268 |  |  | 161 |  |  | 76 |  |  | 7 |  |  | 20 |  |  | — |  |  | 910 |
RI Regulated | 112 |  |  | 38 |  |  | 5 |  |  | 251 |  |  | — |  |  | — |  |  | 52 |  |  | 458 |
Total PPL | $ | 857 |  |  | $ | 417 |  |  | $ | 178 |  |  | $ | 342 |  |  | $ | 7 |  |  | $ | 20 |  |  | $ | 256 |  |  | $ | 2,077 |
2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 389 |  |  | $ | 113 |  |  | $ | 13 |  |  | $ | 14 |  |  | $ | — |  |  | $ | — |  |  | $ | 202 |  |  | $ | 731 |
KY Regulated | 367 |  |  | 260 |  |  | 162 |  |  | 79 |  |  | 6 |  |  | 17 |  |  | — |  |  | 891 |
RI Regulated | 110 |  |  | 32 |  |  | 4 |  |  | 223 |  |  | — |  |  | — |  |  | 47 |  |  | 416 |
Total PPL | $ | 866 |  |  | $ | 405 |  |  | $ | 179 |  |  | $ | 316 |  |  | $ | 6 |  |  | $ | 17 |  |  | $ | 249 |  |  | $ | 2,038 |
PPL Electric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 367 |  |  | $ | 111 |  |  | $ | 12 |  |  | $ | 15 |  |  | $ | — |  |  | $ | — |  |  | $ | 204 |  |  | $ | 709 |
2023 | $ | 389 |  |  | $ | 113 |  |  | $ | 13 |  |  | $ | 14 |  |  | $ | — |  |  | $ | — |  |  | $ | 202 |  |  | $ | 731 |
LG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 190 |  |  | $ | 132 |  |  | $ | 48 |  |  | $ | 31 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |  |  | $ | 407 |
2023 | $ | 182 |  |  | $ | 127 |  |  | $ | 49 |  |  | $ | 33 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |  |  | $ | 397 |
KU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 188 |  |  | $ | 136 |  |  | $ | 113 |  |  | $ | 45 |  |  | $ | 7 |  |  | $ | 26 |  |  | $ | — |  |  | $ | 515 |
2023 | $ | 185 |  |  | $ | 133 |  |  | $ | 113 |  |  | $ | 45 |  |  | $ | 6 |  |  | $ | 21 |  |  | $ | — |  |  | $ | 503 |
| Nine Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 1,125 |  |  | $ | 318 |  |  | $ | 34 |  |  | $ | 43 |  |  | $ | — |  |  | $ | — |  |  | $ | 613 |  |  | $ | 2,133 |
KY Regulated | 1,147 |  |  | 780 |  |  | 479 |  |  | 248 |  |  | 18 |  |  | 48 |  |  | — |  |  | 2,720 |
RI Regulated | 480 |  |  | 182 |  |  | 17 |  |  | 593 |  |  | — |  |  | — |  |  | 128 |  |  | 1,400 |
Corp and Other | — |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  | 1 |
Total PPL | $ | 2,752 |  |  | $ | 1,280 |  |  | $ | 530 |  |  | $ | 885 |  |  | $ | 18 |  |  | $ | 48 |  |  | $ | 741 |  |  | $ | 6,254 |
2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 1,266 |  |  | $ | 346 |  |  | $ | 44 |  |  | $ | 40 |  |  | $ | — |  |  | $ | — |  |  | $ | 593 |  |  | $ | 2,289 |
KY Regulated | 1,108 |  |  | 771 |  |  | 486 |  |  | 205 |  |  | 17 |  |  | 37 |  |  | — |  |  | 2,624 |
RI Regulated | 480 |  |  | 182 |  |  | 17 |  |  | 586 |  |  | — |  |  | — |  |  | 128 |  |  | 1,393 |
Total PPL | $ | 2,854 |  |  | $ | 1,299 |  |  | $ | 547 |  |  | $ | 831 |  |  | $ | 17 |  |  | $ | 37 |  |  | $ | 721 |  |  | $ | 6,306 |
| Nine Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL Electric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 1,125 |  |  | $ | 318 |  |  | $ | 34 |  |  | $ | 43 |  |  | $ | — |  |  | $ | — |  |  | $ | 613 |  |  | $ | 2,133 |
2023 | $ | 1,266 |  |  | $ | 346 |  |  | $ | 44 |  |  | $ | 40 |  |  | $ | — |  |  | $ | — |  |  | $ | 593 |  |  | $ | 2,289 |
LG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 571 |  |  | $ | 391 |  |  | $ | 141 |  |  | $ | 114 |  |  | $ | — |  |  | $ | 34 |  |  | $ | — |  |  | $ | 1,251 |
2023 | $ | 574 |  |  | $ | 398 |  |  | $ | 145 |  |  | $ | 75 |  |  | $ | — |  |  | $ | 33 |  |  | $ | — |  |  | $ | 1,225 |
KU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 576 |  |  | $ | 389 |  |  | $ | 338 |  |  | $ | 134 |  |  | $ | 18 |  |  | $ | 53 |  |  | $ | — |  |  | $ | 1,508 |
2023 | $ | 534 |  |  | $ | 373 |  |  | $ | 341 |  |  | $ | 130 |  |  | $ | 17 |  |  | $ | 38 |  |  | $ | — |  |  | $ | 1,433 |
(a)Primarily includes revenues from pole attachments, street lighting, other public authorities and other non-core businesses. The Rhode Island Regulated segment primarily includes open access tariff revenues, which are calculated on combined customer classes. (b)Includes wholesale power and transmission revenues. LG&E and KU amounts include intercompany power sales and transmission revenues, which are eliminated upon consolidation at the Kentucky Regulated segment.
Credit Loss Recognized from Contracts with Customers [Table Text Block] | The following table shows the accounts receivable and unbilled revenues balances that were impaired for the periods ended September 30.
| Three Months |  | Nine Months
| 2024 |  | 2023 |  | 2024 |  | 2023
PPL (a) | $ | 28 |  |  | $ | 20 |  |  | $ | 72 |  |  | $ | 47 |
PPL Electric (a) | 13 |  |  | 10 |  |  | 37 |  |  | 27 |
LG&E | 1 |  |  | 2 |  |  | 2 |  |  | 3 |
KU | 2 |  |  | 1 |  |  | 3 |  |  | 2 |
(a) For the nine months ended September 30, 2024, balances include amounts impaired related to PPL Electric's billing issues. See Note 6 for additional information.
Contract with Customer, Asset and Liability [Table Text Block] | The following table shows the balances and certain activity of contract liabilities resulting from contracts with customers.
| PPL |  | PPL Electric |  | LG&E |  | KU
Contract liabilities at December 31, 2023 | $ | 43 |  |  | $ | 29 |  |  | $ | 6 |  |  | $ | 7 |
Contract liabilities at September 30, 2024 | 31 |  |  | 21 |  |  | 5 |  |  | 5 |
Revenue recognized during the nine months ended September 30, 2024 that was included in the contract liability balance at December 31, 2023 | 26 |  |  | 12 |  |  | 6 |  |  | 7 |
Contract liabilities at December 31, 2022 | $ | 34 |  |  | $ | 23 |  |  | $ | 5 |  |  | $ | 6 |
Contract liabilities at September 30, 2023 | 33 |  |  | 21 |  |  | 5 |  |  | 6 |
Revenue recognized during the nine months ended September 30, 2023 that was included in the contract liability balance at December 31, 2022 | 21 |  |  | 10 |  |  | 5 |  |  | 6 |

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