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v3.25.1

Segment and Related Information (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 USD ($) Integer | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | $ 2,504 |  | $ 2,304 |
Fuel |  | 234 |  | 209 |
Energy purchases |  | 559 |  | 520 |
Depreciation |  | 322 |  | 316 |
Taxes, other than income |  | 113 |  | 88 |
Other Income (Expense) - net |  | (28) |  | (22) |
Interest Expense |  | 190 |  | 179 |
Income Taxes |  | 102 |  | 81 |
Net income (loss) |  | 414 |  | 307 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 41,809 |  |  | $ 41,069
Segment (Numeric) [Abstract] |  |  |  |  |
Goodwill |  | $ 2,247 |  |  | 2,247
Number of Reportable Segments | Integer |  | 3 |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | $ 793 |  | 596 |
Amortization |  | 20 |  | 24 |
Deferred income taxes and investment tax credits |  | 38 |  | 72 |
Total Segments |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 2,504 |  | 2,303 |
Fuel |  | 234 |  | 209 |
Energy purchases |  | 560 |  | 520 |
Utilities Operating Expense, Maintenance and Operations |  | 562 |  | 539 |
Depreciation |  | 320 |  | 316 |
Taxes, other than income |  | 113 |  | 88 |
Other Income (Expense) - net |  | (26) |  | (19) |
Interest Expense |  | 143 |  | 146 |
Income Taxes |  | 125 |  | 111 |
Net income (loss) |  | 477 |  | 403 |
Segment (Numeric) [Abstract] |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | 790 |  | 595 |
Amortization |  | 16 |  | 20 |
Deferred income taxes and investment tax credits |  | 21 |  | 54 |
Total Segments | Related Party |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |
Interest Income from affiliate |  | (4) |  | (10) |
Rhode Island Regulated |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 626 |  | 549 |
Fuel |  | 0 |  | 0 |
Energy purchases |  | 235 |  | 229 |
Utilities Operating Expense, Maintenance and Operations |  | 200 |  | 156 |
Depreciation |  | 42 |  | 41 |
Taxes, other than income |  | 47 |  | 27 |
Other Income (Expense) - net |  | (7) |  | (7) |
Interest Expense |  | 23 |  | 24 |
Income Taxes |  | 18 |  | 15 |
Net income (loss) |  | 70 |  | 64 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 7,194 |  |  | 7,055
Segment (Numeric) [Abstract] |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | 172 |  | 125 |
Amortization |  | 0 |  | 0 |
Deferred income taxes and investment tax credits |  | (7) |  | 18 |
Rhode Island Regulated | Related Party |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |
Interest Income from affiliate |  | (2) |  | 0 |
Pennsylvania Regulated [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 819 |  | 770 |
Fuel |  | 0 |  | 0 |
Energy purchases |  | 229 |  | 214 |
Utilities Operating Expense, Maintenance and Operations |  | 162 |  | 181 |
Depreciation |  | 102 |  | 99 |
Taxes, other than income |  | 41 |  | 36 |
Other Income (Expense) - net |  | (11) |  | (9) |
Interest Expense |  | 60 |  | 62 |
Income Taxes |  | 54 |  | 48 |
Net income (loss) |  | 184 |  | 149 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 15,654 |  |  | 15,475
Segment (Numeric) [Abstract] |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | 328 |  | 229 |
Amortization |  | 11 |  | 12 |
Deferred income taxes and investment tax credits |  | 20 |  | 32 |
Pennsylvania Regulated [Member] | Related Party |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |
Interest Income from affiliate |  | (2) |  | (10) |
Kentucky Regulated [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 1,059 |  | 984 |
Fuel |  | 234 |  | 209 |
Energy purchases |  | 96 |  | 77 |
Utilities Operating Expense, Maintenance and Operations |  | 200 |  | 202 |
Depreciation |  | 176 |  | 176 |
Taxes, other than income |  | 25 |  | 25 |
Other Income (Expense) - net |  | (8) |  | (3) |
Interest Expense |  | 60 |  | 60 |
Income Taxes |  | 53 |  | 48 |
Net income (loss) |  | 223 |  | 190 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 17,789 |  |  | 17,626
Segment (Numeric) [Abstract] |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | 290 |  | 241 |
Amortization |  | 5 |  | 8 |
Deferred income taxes and investment tax credits |  | 8 |  | 4 |
Kentucky Regulated [Member] | Related Party |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |
Interest Income from affiliate |  | 0 |  | 0 |
Corporate and Other [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 0 |  | 1 |
Income Taxes |  | (23) |  | (30) |
Net income (loss) |  | (63) |  | (96) |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 1,172 |  |  | 913
Segment (Numeric) [Abstract] |  |  |  |  |
Segment, Expenditure, Addition to Long-Lived Assets |  | 3 |  | 1 |
Amortization |  | 4 |  | 4 |
Deferred income taxes and investment tax credits |  | 17 |  | 18 |
PPL Electric Utilities Corp [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 819 |  | 770 |
Energy purchases |  | 229 |  | 214 |
Depreciation |  | 102 |  | 99 |
Taxes, other than income |  | 41 |  | 36 |
Other Income (Expense) - net |  | (11) |  | (9) |
Interest Expense |  | 60 |  | 62 |
Income Taxes |  | 54 |  | 48 |
Net income (loss) | [1] | 184 |  | 149 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | $ 15,654 |  |  | 15,475
Segment (Numeric) [Abstract] |  |  |  |  |
Number of Reportable Segments | Integer |  | 1 |  |  |
Number of Operating Segments | Integer |  | 2 |  |  |
Amortization |  | $ 11 |  | 12 |
Deferred income taxes and investment tax credits |  | 20 |  | 32 |
PPL Electric Utilities Corp [Member] | Related Party |  |  |  |  |
Segment (Numeric) [Abstract] |  |  |  |  |
Interest Income from affiliate |  | (2) |  | (10) |
Louisville Gas And Electric Co [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 505 |  | 476 |
Fuel |  | 82 |  | 86 |
Energy purchases |  | 88 |  | 71 |
Depreciation |  | 74 |  | 76 |
Taxes, other than income |  | 13 |  | 13 |
Other Income (Expense) - net |  | (3) |  | (2) |
Interest Expense |  | 26 |  | 26 |
Income Taxes |  | 26 |  | 24 |
Net income (loss) |  | 105 | [2] | 93 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 8,081 |  |  | 7,992
Segment (Numeric) [Abstract] |  |  |  |  |
Goodwill |  | $ 389 |  |  | 389
Number of Reportable Segments | Integer |  | 1 |  |  |
Number of Operating Segments | Integer |  | 1 |  |  |
Amortization |  | $ 4 |  | 3 |
Deferred income taxes and investment tax credits |  | 1 |  | 2 |
Kentucky Utilities Co [Member] |  |  |  |  |
Income Statement Data [Abstract] |  |  |  |  |
Revenues |  | 564 |  | 525 |
Fuel |  | 152 |  | 123 |
Energy purchases |  | 7 |  | 6 |
Depreciation |  | 102 |  | 99 |
Taxes, other than income |  | 12 |  | 12 |
Other Income (Expense) - net |  | (5) |  | (2) |
Interest Expense |  | 35 |  | 34 |
Income Taxes |  | 31 |  | 27 |
Net income (loss) | [3] | 125 |  | 108 |
Balance Sheet Data [Abstract] |  |  |  |  |
Total Assets |  | 10,161 |  |  | 10,073
Segment (Numeric) [Abstract] |  |  |  |  |
Goodwill |  | $ 607 |  |  | $ 607
Number of Reportable Segments | Integer |  | 1 |  |  |
Number of Operating Segments | Integer |  | 1 |  |  |
Amortization |  | $ 4 |  | 5 |
Deferred income taxes and investment tax credits |  | $ 3 |  | $ (1) |
[1] | Net income equals comprehensive income.
[2] | Net income equals comprehensive income.
[3] | Net income equals comprehensive income.

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