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Income and Other Taxes (Unrecognized to End) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($) Integer | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Income Tax Examination (Details) [Line Items] |  |  |
Number of major tax jurisdictions tax returns are filed | Integer | 4 |  |
Deferred Income Tax Expense (Benefit) | $ 334 | $ 190 | $ 516
Increase (Decrease) in Regulatory Assets and Liabilities | $ 37 | 119 | (52)
US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2019 and prior |  |
Pennsylvania - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2017 and prior |  |
Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2018 and prior |  |
United Kingdom - Foreign [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2021 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) | $ 46 | 91 | 79
Increase (Decrease) in Regulatory Assets and Liabilities | 38 | 59 | (96)
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount | $ 0 | (9) | 0
PPL Electric Utilities Corp [Member] | Deferred Tax Benefit |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount |  | 9 |
PPL Electric Utilities Corp [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2019 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 | 2017 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 | 2018 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) | $ (13) | (5) | 9
Increase (Decrease) in Regulatory Assets and Liabilities | $ (25) | (17) | 23
Louisville Gas And Electric Co [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2019 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 | 2018 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) | $ (7) | 4 | 3
Increase (Decrease) in Regulatory Assets and Liabilities | $ (25) | $ 19 | $ 22
Kentucky Utilities Co [Member] | US - Federal [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2019 and prior |  |
Kentucky Utilities Co [Member] | Kentucky - State [Member] |  |  |
Income Tax Examination (Details) [Line Items] |  |  |
Income tax examination, year(s) no longer under examination | 2018 and prior |  |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the state statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the state income tax rates. + References No definition available. + Details
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