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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2024
Revenue from Contracts with Customers [Line Items] |
Reconciliation of Revenue from Contracts with Customers [Table Text Block] | The following tables reconcile "Operating Revenues" included in each Registrant's Statement of Income with revenues generated from contracts with customers for the periods ended June 30.
| 2024 Three Months
| PPL |  | PPL Electric |  | LG&E |  | KU
Operating Revenues (a) | $ | 1,881 |  |  | $ | 673 |  |  | $ | 366 |  |  | $ | 464 |
Revenues derived from: |  |  |  |  |  |  |
Alternative revenue programs (b) | (3) |  |  | (8) |  |  | 2 |  |  | 1 |
Other (c) | (4) |  |  | (3) |  |  | (1) |  |  | (1) |
Revenues from Contracts with Customers | $ | 1,874 |  |  | $ | 662 |  |  | $ | 367 |  |  | $ | 464 |
| 2023 Three Months
| PPL |  | PPL Electric |  | LG&E |  | KU
Operating Revenues (a) | $ | 1,823 |  |  | $ | 667 |  |  | $ | 355 |  |  | $ | 435 |
Revenues derived from: |  |  |  |  |  |  |
Alternative revenue programs (b) | 5 |  |  | 6 |  |  | — |  |  | (3) |
Other (c) | (7) |  |  | (5) |  |  | (1) |  |  | (1) |
Revenues from Contracts with Customers | $ | 1,821 |  |  | $ | 668 |  |  | $ | 354 |  |  | $ | 431 |
| 2024 Six Months
| PPL |  | PPL Electric |  | LG&E |  | KU
Operating Revenues (a) | $ | 4,185 |  |  | $ | 1,443 |  |  | $ | 842 |  |  | $ | 989 |
Revenues derived from: |  |  |  |  |  |  |
Alternative revenue programs (b) | 5 |  |  | (11) |  |  | 4 |  |  | 6 |
Other (c) | (12) |  |  | (8) |  |  | (2) |  |  | (2) |
Revenues from Contracts with Customers | $ | 4,178 |  |  | $ | 1,424 |  |  | $ | 844 |  |  | $ | 993 |
| 2023 Six Months
| PPL |  | PPL Electric |  | LG&E |  | KU
Operating Revenues (a) | $ | 4,238 |  |  | $ | 1,558 |  |  | $ | 829 |  |  | $ | 934 |
Revenues derived from: |  |  |  |  |  |  |
Alternative revenue programs (b) | 42 |  |  | 7 |  |  | 1 |  |  | (3) |
Other (c) | (11) |  |  | (7) |  |  | (2) |  |  | (2) |
Revenues from Contracts with Customers | $ | 4,269 |  |  | $ | 1,558 |  |  | $ | 828 |  |  | $ | 929 |
(a)PPL includes $389 million and $938 million for the three and six months ended June 30, 2024 and $377 million and $942 million for the three and six months ended June 30, 2023 of revenues from external customers reported by the Rhode Island Regulated segment. PPL Electric represents revenues from external customers reported by the Pennsylvania Regulated segment and LG&E and KU, net of intercompany power sales and transmission revenues, represent revenues from external customers reported by the Kentucky Regulated segment. See Note 2 for additional information. (b)This line item shows the over/under collection of rate mechanisms deemed alternative revenue programs with over-collections of revenue shown as positive amounts in the table above and under-collections shown as negative amounts. (c)Represents additional revenues outside the scope of revenues from contracts with customers, such as lease and other miscellaneous revenues.
Disaggregation of Revenue [Table Text Block] | The following tables show revenues from contracts with customers disaggregated by customer class for the periods ended June 30.
| Three Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 332 |  |  | $ | 101 |  |  | $ | 10 |  |  | $ | 15 |  |  | $ | — |  |  | $ | — |  |  | $ | 204 |  |  | $ | 662 |
KY Regulated | 326 |  |  | 245 |  |  | 157 |  |  | 75 |  |  | 5 |  |  | 13 |  |  | — |  |  | 821 |
RI Regulated | 139 |  |  | 42 |  |  | 3 |  |  | 162 |  |  | — |  |  | — |  |  | 45 |  |  | 391 |
Total PPL | $ | 797 |  |  | $ | 388 |  |  | $ | 170 |  |  | $ | 252 |  |  | $ | 5 |  |  | $ | 13 |  |  | $ | 249 |  |  | $ | 1,874 |
2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 340 |  |  | $ | 105 |  |  | $ | 11 |  |  | $ | 13 |  |  | $ | — |  |  | $ | — |  |  | $ | 199 |  |  | $ | 668 |
KY Regulated | 298 |  |  | 237 |  |  | 160 |  |  | 66 |  |  | 4 |  |  | 9 |  |  | — |  |  | 774 |
RI Regulated | 141 |  |  | 49 |  |  | 4 |  |  | 149 |  |  | — |  |  | — |  |  | 36 |  |  | 379 |
Total PPL | $ | 779 |  |  | $ | 391 |  |  | $ | 175 |  |  | $ | 228 |  |  | $ | 4 |  |  | $ | 9 |  |  | $ | 235 |  |  | $ | 1,821 |
PPL Electric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 332 |  |  | $ | 101 |  |  | $ | 10 |  |  | $ | 15 |  |  | $ | — |  |  | $ | — |  |  | $ | 204 |  |  | $ | 662 |
2023 | $ | 340 |  |  | $ | 105 |  |  | $ | 11 |  |  | $ | 13 |  |  | $ | — |  |  | $ | — |  |  | $ | 199 |  |  | $ | 668 |
LG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 163 |  |  | $ | 121 |  |  | $ | 46 |  |  | $ | 31 |  |  | $ | — |  |  | $ | 6 |  |  | $ | — |  |  | $ | 367 |
2023 | $ | 151 |  |  | $ | 119 |  |  | $ | 47 |  |  | $ | 26 |  |  | $ | — |  |  | $ | 11 |  |  | $ | — |  |  | $ | 354 |
KU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 163 |  |  | $ | 124 |  |  | $ | 111 |  |  | $ | 43 |  |  | $ | 5 |  |  | $ | 18 |  |  | $ | — |  |  | $ | 464 |
2023 | $ | 147 |  |  | $ | 117 |  |  | $ | 113 |  |  | $ | 40 |  |  | $ | 4 |  |  | $ | 10 |  |  | $ | — |  |  | $ | 431 |
| Six Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 758 |  |  | $ | 207 |  |  | $ | 22 |  |  | $ | 28 |  |  | $ | — |  |  | $ | — |  |  | $ | 409 |  |  | $ | 1,424 |
KY Regulated | 769 |  |  | 512 |  |  | 318 |  |  | 172 |  |  | 11 |  |  | 28 |  |  | — |  |  | 1,810 |
RI Regulated | 400 |  |  | 120 |  |  | 8 |  |  | 324 |  |  | — |  |  | — |  |  | 92 |  |  | 944 |
Total PPL | $ | 1,927 |  |  | $ | 839 |  |  | $ | 348 |  |  | $ | 524 |  |  | $ | 11 |  |  | $ | 28 |  |  | $ | 501 |  |  | $ | 4,178 |
2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
PA Regulated | $ | 968 |  |  | $ | 253 |  |  | $ | 34 |  |  | $ | 26 |  |  | $ | — |  |  | $ | — |  |  | $ | 277 |  |  | $ | 1,558 |
KY Regulated | 741 |  |  | 511 |  |  | 324 |  |  | 126 |  |  | 11 |  |  | 20 |  |  | — |  |  | 1,733 |
RI Regulated | 370 |  |  | 150 |  |  | 13 |  |  | 364 |  |  | — |  |  | — |  |  | 81 |  |  | 978 |
Total PPL | $ | 2,079 |  |  | $ | 914 |  |  | $ | 371 |  |  | $ | 516 |  |  | $ | 11 |  |  | $ | 20 |  |  | $ | 358 |  |  | $ | 4,269 |
| Six Months
| Residential |  | Commercial |  | Industrial |  | Other (a) |  | Wholesale - municipality |  | Wholesale - other (b) |  | Transmission |  | Revenues from Contracts with Customers
PPL Electric |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 758 |  |  | $ | 207 |  |  | $ | 22 |  |  | $ | 28 |  |  | $ | — |  |  | $ | — |  |  | $ | 409 |  |  | $ | 1,424 |
2023 | $ | 968 |  |  | $ | 253 |  |  | $ | 34 |  |  | $ | 26 |  |  | $ | — |  |  | $ | — |  |  | $ | 277 |  |  | $ | 1,558 |
LG&E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 381 |  |  | $ | 259 |  |  | $ | 93 |  |  | $ | 83 |  |  | $ | — |  |  | $ | 28 |  |  | $ | — |  |  | $ | 844 |
2023 | $ | 392 |  |  | $ | 271 |  |  | $ | 96 |  |  | $ | 42 |  |  | $ | — |  |  | $ | 27 |  |  | $ | — |  |  | $ | 828 |
KU |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2024 | $ | 388 |  |  | $ | 253 |  |  | $ | 225 |  |  | $ | 89 |  |  | $ | 11 |  |  | $ | 27 |  |  | $ | — |  |  | $ | 993 |
2023 | $ | 349 |  |  | $ | 240 |  |  | $ | 228 |  |  | $ | 84 |  |  | $ | 11 |  |  | $ | 17 |  |  | $ | — |  |  | $ | 929 |
(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 June 30.
| Three Months |  | Six Months
| 2024 |  | 2023 |  | 2024 |  | 2023
PPL (a) | $ | 2 |  |  | $ | 6 |  |  | $ | 43 |  |  | $ | 26 |
PPL Electric (a) | (4) |  |  | 7 |  |  | 24 |  |  | 17 |
LG&E | — |  |  | — |  |  | 1 |  |  | 1 |
KU | — |  |  | 1 |  |  | 1 |  |  | 1 |
(a) 2024 includes 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 June 30, 2024 | 31 |  |  | 22 |  |  | 4 |  |  | 5 |
Revenue recognized during the six months ended June 30, 2024 that was included in the contract liability balance at December 31, 2023 | 25 |  |  | 11 |  |  | 6 |  |  | 7 |
Contract liabilities at December 31, 2022 | $ | 34 |  |  | $ | 23 |  |  | $ | 5 |  |  | $ | 6 |
Contract liabilities at June 30, 2023 | 48 |  |  | 35 |  |  | 6 |  |  | 7 |
Revenue recognized during the six months ended June 30, 2023 that was included in the contract liability balance at December 31, 2022 | 18 |  |  | 7 |  |  | 5 |  |  | 6 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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