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v3.25.3

Segment and Related Information (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) Integer | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | $ 2,239 |  | $ 2,066 | $ 6,768 |  | $ 6,251 |
Fuel |  | 231 |  | 207 | 657 |  | 597 |
Energy purchases |  | 422 |  | 338 | 1,369 |  | 1,133 |
Depreciation |  | 331 |  | 322 | 977 |  | 957 |
Taxes, other than income |  | 100 |  | 90 | 314 |  | 271 |
Other Income (Expense) - net |  | (39) |  | (32) | (90) |  | (86) |
Interest Expense |  | 210 |  | 188 | 599 |  | 549 |
Income Taxes |  | 80 |  | 58 | 229 |  | 189 |
Net income (loss) |  | 318 |  | 214 | 915 |  | 711 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 43,939 |  |  | 43,939 |  |  | $ 41,069
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | 2,247 |  |  | $ 2,247 |  |  | 2,247
Number of Reportable Segments | Integer |  |  |  |  | 3 |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | $ 2,868 |  | 1,945 |
Amortization |  |  |  |  | 73 |  | 61 |
Deferred income taxes and investment tax credits |  |  |  |  | 177 |  | 147 |
Total Segments |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 2,239 |  | 2,066 | 6,768 |  | 6,250 |
Fuel |  | 231 |  | 207 | 657 |  | 597 |
Energy purchases |  | 420 |  | 337 | 1,369 |  | 1,132 |
Utilities Operating Expense, Maintenance and Operations |  | 557 |  | 583 | 1,692 |  | 1,651 |
Depreciation |  | 330 |  | 321 | 973 |  | 954 |
Taxes, other than income |  | 102 |  | 90 | 315 |  | 271 |
Other Income (Expense) - net |  | (33) |  | (28) | (76) |  | (73) |
Interest Expense |  | 163 |  | 146 | 458 |  | 437 |
Income Taxes |  | 100 |  | 92 | 291 |  | 284 |
Net income (loss) |  | 371 |  | 325 | 1,096 |  | 1,024 |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | 2,864 |  | 1,954 |
Amortization |  |  |  |  | 63 |  | 54 |
Deferred income taxes and investment tax credits |  |  |  |  | 122 |  | 128 |
Total Segments | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | (2) |  | (7) | (7) |  | (27) |
Rhode Island Regulated |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 509 |  | 455 | 1,629 |  | 1,393 |
Fuel |  | 0 |  | 0 | 0 |  | 0 |
Energy purchases |  | 173 |  | 135 | 598 |  | 464 |
Utilities Operating Expense, Maintenance and Operations |  | 196 |  | 211 | 610 |  | 547 |
Depreciation |  | 45 |  | 42 | 131 |  | 123 |
Taxes, other than income |  | 38 |  | 33 | 127 |  | 99 |
Other Income (Expense) - net |  | (2) |  | (7) | (5) |  | (20) |
Interest Expense |  | 28 |  | 25 | 78 |  | 72 |
Income Taxes |  | 4 |  | 2 | 13 |  | 18 |
Net income (loss) |  | 27 |  | 14 | 80 |  | 90 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 7,247 |  |  | 7,247 |  |  | 7,055
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | 539 |  | 342 |
Amortization |  |  |  |  | 1 |  | 1 |
Deferred income taxes and investment tax credits |  |  |  |  | 38 |  | 38 |
Rhode Island Regulated | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | 0 |  | 0 | (3) |  | 0 |
Pennsylvania Regulated [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 786 |  | 716 | 2,298 |  | 2,159 |
Fuel |  | 0 |  | 0 | 0 |  | 0 |
Energy purchases |  | 224 |  | 177 | 622 |  | 544 |
Utilities Operating Expense, Maintenance and Operations |  | 160 |  | 176 | 481 |  | 511 |
Depreciation |  | 105 |  | 101 | 307 |  | 300 |
Taxes, other than income |  | 38 |  | 32 | 111 |  | 98 |
Other Income (Expense) - net |  | (14) |  | (13) | (36) |  | (33) |
Interest Expense |  | 67 |  | 61 | 189 |  | 184 |
Income Taxes |  | 49 |  | 47 | 146 |  | 141 |
Net income (loss) |  | 159 |  | 142 | 482 |  | 441 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 16,702 |  |  | 16,702 |  |  | 15,475
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | 1,082 |  | 820 |
Amortization |  |  |  |  | 34 |  | 35 |
Deferred income taxes and investment tax credits |  |  |  |  | 63 |  | 91 |
Pennsylvania Regulated [Member] | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | (2) |  | (7) | (4) |  | (27) |
Kentucky Regulated [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 944 |  | 895 | 2,841 |  | 2,698 |
Fuel |  | 231 |  | 207 | 657 |  | 597 |
Energy purchases |  | 23 |  | 25 | 149 |  | 124 |
Utilities Operating Expense, Maintenance and Operations |  | 201 |  | 196 | 601 |  | 593 |
Depreciation |  | 180 |  | 178 | 535 |  | 531 |
Taxes, other than income |  | 26 |  | 25 | 77 |  | 74 |
Other Income (Expense) - net |  | (17) |  | (8) | (35) |  | (20) |
Interest Expense |  | 68 |  | 60 | 191 |  | 181 |
Income Taxes |  | 47 |  | 43 | 132 |  | 125 |
Net income (loss) |  | 185 |  | 169 | 534 |  | 493 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 19,234 |  |  | 19,234 |  |  | 17,626
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | 1,243 |  | 792 |
Amortization |  |  |  |  | 28 |  | 18 |
Deferred income taxes and investment tax credits |  |  |  |  | 21 |  | (1) |
Kentucky Regulated [Member] | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | 0 |  | 0 | 0 |  | 0 |
Corporate and Other [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 | 0 |  | 1 |
Income Taxes |  | (22) |  | (34) | (63) |  | (96) |
Net income (loss) |  | (53) |  | (111) | (181) |  | (313) |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 756 |  |  | 756 |  |  | 913
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  |  |  |  | 4 |  | (9) |
Amortization |  |  |  |  | 10 |  | 7 |
Deferred income taxes and investment tax credits |  |  |  |  | 55 |  | 19 |
PPL Electric Utilities Corp [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 786 |  | 716 | 2,298 |  | 2,159 |
Energy purchases |  | 224 |  | 177 | 622 |  | 544 |
Depreciation |  | 105 |  | 101 | 307 |  | 300 |
Taxes, other than income |  | 38 |  | 32 | 111 |  | 98 |
Other Income (Expense) - net |  | (14) |  | (13) | (36) |  | (33) |
Interest Expense |  | 67 |  | 61 | 189 |  | 184 |
Income Taxes |  | 49 |  | 47 | 146 |  | 141 |
Net income (loss) | [1] | 159 |  | 142 | 482 |  | 441 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 16,702 |  |  | $ 16,702 |  |  | 15,475
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 2 |  |  |
Amortization |  |  |  |  | $ 34 |  | 35 |
Deferred income taxes and investment tax credits |  |  |  |  | 63 |  | 91 |
PPL Electric Utilities Corp [Member] | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | (2) |  | (7) | (4) |  | (27) |
Louisville Gas And Electric Co [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 427 |  | 397 | 1,310 |  | 1,239 |
Fuel |  | 97 |  | 75 | 254 |  | 228 |
Energy purchases |  | 17 |  | 19 | 128 |  | 105 |
Depreciation |  | 77 |  | 76 | 228 |  | 229 |
Taxes, other than income |  | 13 |  | 13 | 39 |  | 38 |
Other Income (Expense) - net |  | (8) |  | (3) | (16) |  | (9) |
Interest Expense |  | 30 |  | 26 | 83 |  | 78 |
Income Taxes |  | 21 |  | 20 | 61 |  | 61 |
Net income (loss) |  | 83 | [2] | 77 | 244 | [2] | 232 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 8,848 |  |  | 8,848 |  |  | 7,992
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | 389 |  |  | $ 389 |  |  | 389
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 1 |  |  |
Amortization |  |  |  |  | $ 17 |  | 10 |
Deferred income taxes and investment tax credits |  |  |  |  | 1 |  | 3 |
Louisville Gas And Electric Co [Member] | Related Party |  |  |  |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Interest Income from affiliate |  | 0 |  | (1) | 0 |  | (1) |
Kentucky Utilities Co [Member] |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Revenues |  | 530 |  | 509 | 1,566 |  | 1,498 |
Fuel |  | 135 |  | 131 | 404 |  | 369 |
Energy purchases |  | 6 |  | 7 | 20 |  | 19 |
Depreciation |  | 102 |  | 102 | 305 |  | 302 |
Taxes, other than income |  | 13 |  | 12 | 38 |  | 36 |
Other Income (Expense) - net |  | (9) |  | (4) | (19) |  | (10) |
Interest Expense |  |  |  |  | 108 |  | 102 |
Income Taxes |  | 28 |  | 24 | 78 |  | 70 |
Net income (loss) | [3] | 109 |  | 98 | 312 |  | 283 |
Balance Sheet Data [Abstract] |  |  |  |  |  |  |  |
Total Assets |  | 10,833 |  |  | 10,833 |  |  | 10,073
Segment (Numeric) [Abstract] |  |  |  |  |  |  |  |
Goodwill |  | 607 |  |  | $ 607 |  |  | $ 607
Number of Reportable Segments | Integer |  |  |  |  | 1 |  |  |
Number of Operating Segments | Integer |  |  |  |  | 1 |  |  |
Amortization |  |  |  |  | $ 13 |  | 14 |
Deferred income taxes and investment tax credits |  |  |  |  | 11 |  | (12) |
Kentucky Utilities Co [Member] | Related Party |  |  |  |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |  |  |  |
Interest Expense |  | $ 0 |  | $ 0 | $ 0 |  | $ 1 |
[1] | Net income equals comprehensive income.
[2] | Net income equals comprehensive income.
[3] | Net income equals comprehensive income.

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