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v3.24.3

Segment and Related Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) Integer | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | $ 2,066 |  | $ 2,043 | $ 6,251 |  | $ 6,281 |
Net income (loss) |  | 214 |  | 230 | 711 |  | 627 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 40,472 |  |  | 40,472 |  |  | $ 39,236
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | 2,247 |  |  | $ 2,247 |  |  | 2,247
Number of Reportable Segments | Integer |  |  |  |  | 3 |  |  |
Kentucky Regulated [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 895 |  | 893 | $ 2,698 |  | 2,631 |
Net income (loss) |  | 169 |  | 175 | 493 |  | 432 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 17,356 |  |  | 17,356 |  |  | 17,029
Pennsylvania Regulated [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 716 |  | 737 | 2,159 |  | 2,295 |
Net income (loss) |  | 142 |  | 136 | 441 |  | 384 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 15,328 |  |  | 15,328 |  |  | 14,294
Corporate and Other [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 0 |  | 0 | 1 |  | 0 |
Net income (loss) |  | (111) |  | (87) | (313) |  | (259) |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 835 |  |  | 835 |  |  | 1,398
Rhode Island Regulated |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 455 |  | 413 | 1,393 |  | 1,355 | 1,400
Net income (loss) |  | 14 |  | 6 | 90 |  | 70 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 6,953 |  |  | 6,953 |  |  | 6,515
PPL Electric Utilities Corp [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 716 |  | 737 | 2,159 |  | 2,295 |
Net income (loss) | [1] | 142 |  | 136 | 441 |  | 384 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 15,328 |  |  | $ 15,328 |  |  | 14,294
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 2 |  |  |
Louisville Gas And Electric Co [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 397 |  | 398 | $ 1,239 |  | 1,227 |
Net income (loss) |  | 77 | [2] | 79 | 232 | [2] | 210 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 7,878 |  |  | 7,878 |  |  | 7,753
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | 389 |  |  | $ 389 |  |  | 389
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 1 |  |  |
Kentucky Utilities Co [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Operating Revenues from external customers |  | 509 |  | 505 | $ 1,498 |  | 1,439 |
Net income (loss) | [3] | 98 |  | $ 101 | 283 |  | $ 240 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Assets |  | 9,939 |  |  | 9,939 |  |  | 9,714
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | $ 607 |  |  | $ 607 |  |  | $ 607
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 1 |  |  |
[1] | Net income equals comprehensive income.
[2] | Net income equals comprehensive income.
[3] | Net income equals comprehensive income.

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