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Income and Other Taxes (Unrecognized to End) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2025 USD ($) Integer | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Income Tax Examination (Details) [Line Items] |  |  |
Number of major tax jurisdictions tax returns are filed | Integer | 4 |  |
Deferred Income Tax Expense (Benefit) | $ 199 | $ 201 | $ 334
Increase (Decrease) in Regulatory Assets and Liabilities | $ (162) | 68 | 37
US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
Pennsylvania - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2021 and prior |  |
Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
PPL Electric Utilities Corp [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Number of major tax jurisdictions tax returns are filed | Integer | 3 |  |
Deferred Income Tax Expense (Benefit) | $ 24 | 128 | 46
Increase (Decrease) in Regulatory Assets and Liabilities | $ (67) | 101 | 38
PPL Electric Utilities Corp [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
PPL Electric Utilities Corp [Member] | Pennsylvania - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2021 and prior |  |
PPL Electric Utilities Corp [Member] | Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
Louisville Gas And Electric Co [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Number of major tax jurisdictions tax returns are filed | Integer | 2 |  |
Deferred Income Tax Expense (Benefit) | $ (7) | 7 | (13)
Increase (Decrease) in Regulatory Assets and Liabilities | $ 12 | 3 | (25)
Louisville Gas And Electric Co [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
Louisville Gas And Electric Co [Member] | Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
Kentucky Utilities Co [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Number of major tax jurisdictions tax returns are filed | Integer | 2 |  |
Deferred Income Tax Expense (Benefit) | $ 2 | (13) | (7)
Increase (Decrease) in Regulatory Assets and Liabilities | $ 6 | $ (23) | $ (25)
Kentucky Utilities Co [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |
Kentucky Utilities Co [Member] | Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2020 and prior |  |

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