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Income and Other Taxes (Income Tax Expense and Reconciliation of Income Tax Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Expense (Benefit) |  |  |
Current - Federal | $ (175) | $ (2) | $ (1)
Current - State | 37 | 24 | 36
Current - Foreign | 0 | 0 | (1)
Total Current Expense | (138) | 22 | 34
Deferred - Federal | 286 | 122 | 28
Deferred - State | 48 | 68 | 105
Deferred - Foreign | 0 | 0 | 383
Total Deferred Expense (Benefit), excluding operating loss carry forwards | 334 | 190 | 516
Amortization of investment tax credit | (3) | (3) | (3)
Tax expense (benefit) of operating loss carryforwards [Abstract] |  |  |
Deferred - Federal | 3 | 2 | 12
Deferred - State | (12) | (10) | (56)
Total Tax Expense (Benefit) of Operating Loss Carryforwards | (9) | (8) | (44)
Total income tax from continuing operations | 184 | 201 | 503
Income tax expense [Abstract] |  |  |
Total income tax expense - Federal | 111 | 119 | 36
Total income tax expense - State | 73 | 82 | 85
Total income tax expense - Foreign | 0 | 0 | 382
Total income tax from continuing operations | 184 | 201 | 503
Income Tax Expense (Benefit) Excluded From Income Taxes [Abstract] |  |  |
Income tax related to other comprehensive income | (14) | 11 | 150
Valuation allowance on state deferred taxes recorded to other comprehensive income | (1) | 0 | 0
Total income tax expense (benefits) excluded from income taxes from continuing operations | (15) | (31) | 1,569
Reconciliation of Income Tax Expense |  |  |
Federal income tax on Income Before Income Taxes at statutory tax rate | 194 | 192 | 109
Increase (decrease) due to: |  |  |
State income taxes, net of federal income tax benefit | 58 | 68 | 23
Valuation allowance adjustments | 12 | 9 | 48
Income tax credits | (22) | (3) | (2)
Impact of the United Kingdom Finance Acts on deferred tax balances | 0 | 0 | 383
Depreciation and other items not normalized | (10) | (8) | (5)
Amortization of excess deferred federal and state income taxes | (48) | (54) | (54)
Other | (1) | (8) | (5)
Total increase (decrease) | (10) | 9 | 394
Total income tax from continuing operations | $ 184 | $ 201 | $ 503
Effective income tax rate | 19.90% | 22.00% | 96.50%
Expense related to increased Pennsylvania net operating loss carryforwards expected to be unutilized | $ 11 | $ 5 | $ 15
Taxes, other than income |  |  |
State gross receipts | 195 | 175 | 113
Domestic property and other | 197 | 157 | 94
Total | 392 | 332 | 207
Deferred Tax Assets, Valuation Allowances | 245 | 213 |
Reclassification from AOCI due to sale of UK utility business | 0 | 0 | 660
Nondeductible officers salary | 1 | 5 | 6
Renewable Tax Credits Utilized | 250 |  |
WPD [Member] |  |  |
Taxes, other than income |  |  |
Income tax related to Discontinued Operations | 0 | (42) | 759
PPL Electric Utilities Corp [Member] |  |  |
Income Tax Expense (Benefit) |  |  |
Current - Federal | 91 | 63 | 40
Current - State | 31 | 20 | 35
Total Current Expense | 122 | 83 | 75
Deferred - Federal | 28 | 60 | 59
Deferred - State | 18 | 31 | 20
Total Deferred Expense (Benefit), excluding operating loss carry forwards | 46 | 91 | 79
Tax expense (benefit) of operating loss carryforwards [Abstract] |  |  |
Total income tax from continuing operations | 168 | 174 | 154
Income tax expense [Abstract] |  |  |
Total income tax expense - Federal | 119 | 123 | 99
Total income tax expense - State | 49 | 51 | 55
Total income tax from continuing operations | 168 | 174 | 154
Reconciliation of Income Tax Expense |  |  |
Federal income tax on Income Before Income Taxes at statutory tax rate | 144 | 147 | 126
Increase (decrease) due to: |  |  |
State income taxes, net of federal income tax benefit | 49 | 54 | 46
Depreciation and other items not normalized | (9) | (7) | (5)
Amortization of excess deferred federal and state income taxes | (11) | (12) | (14)
Other | (5) | 1 | 1
Total increase (decrease) | 24 | 27 | 28
Total income tax from continuing operations | $ 168 | $ 174 | $ 154
Effective income tax rate | 24.50% | 24.90% | 25.70%
Taxes, other than income |  |  |
State gross receipts | $ 136 | $ 142 | $ 113
Domestic property and other | 7 | 7 | 7
Total | 143 | 149 | 120
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount | 0 | (9) | 0
PPL Electric Utilities Corp [Member] | Deferred Tax Benefit |  |  |
Taxes, other than income |  |  |
Effective Income Tax Rate Reconciliation, Change in Enacted State Tax Rate, Amount |  | 9 |
Louisville Gas And Electric Co [Member] |  |  |
Income Tax Expense (Benefit) |  |  |
Current - Federal | 70 | 60 | 41
Current - State | 13 | 9 | 5
Total Current Expense | 83 | 69 | 46
Deferred - Federal | (15) | (10) | 1
Deferred - State | 2 | 5 | 8
Total Deferred Expense (Benefit), excluding operating loss carry forwards | (13) | (5) | 9
Amortization of investment tax credit | (1) | (1) | (1)
Tax expense (benefit) of operating loss carryforwards [Abstract] |  |  |
Total income tax from continuing operations | 69 | 63 | 54
Income tax expense [Abstract] |  |  |
Total income tax expense - Federal | 54 | 49 | 41
Total income tax expense - State | 15 | 14 | 13
Total income tax from continuing operations | 69 | 63 | 54
Reconciliation of Income Tax Expense |  |  |
Federal income tax on Income Before Income Taxes at statutory tax rate | 70 | 70 | 64
Increase (decrease) due to: |  |  |
State income taxes, net of federal income tax benefit | 13 | 13 | 12
Amortization of excess deferred federal and state income taxes | (13) | (18) | (20)
Other | (1) | (2) | (2)
Total increase (decrease) | (1) | (7) | (10)
Total income tax from continuing operations | $ 69 | $ 63 | $ 54
Effective income tax rate | 20.60% | 18.80% | 17.80%
Taxes, other than income |  |  |
Domestic property and other | $ 48 | $ 48 | $ 46
Total | 48 | 48 | 46
Deferred Tax Assets, Valuation Allowances | 8 | 9 |
Kentucky Utilities Co [Member] |  |  |
Income Tax Expense (Benefit) |  |  |
Current - Federal | 73 | 63 | 58
Current - State | 13 | 11 | 8
Total Current Expense | 86 | 74 | 66
Deferred - Federal | (11) | (3) | (4)
Deferred - State | 4 | 7 | 7
Total Deferred Expense (Benefit), excluding operating loss carry forwards | (7) | 4 | 3
Amortization of investment tax credit | (2) | (2) | (2)
Tax expense (benefit) of operating loss carryforwards [Abstract] |  |  |
Total income tax from continuing operations | 77 | 76 | 67
Income tax expense [Abstract] |  |  |
Total income tax expense - Federal | 60 | 58 | 52
Total income tax expense - State | 17 | 18 | 15
Total income tax from continuing operations | 77 | 76 | 67
Reconciliation of Income Tax Expense |  |  |
Federal income tax on Income Before Income Taxes at statutory tax rate | 82 | 84 | 76
Increase (decrease) due to: |  |  |
State income taxes, net of federal income tax benefit | 15 | 16 | 14
Amortization of investment tax credit | (2) | (2) | (2)
Amortization of excess deferred federal and state income taxes | (17) | (21) | (20)
Other | (1) | (1) | (1)
Total increase (decrease) | (5) | (8) | (9)
Total income tax from continuing operations | $ 77 | $ 76 | $ 67
Effective income tax rate | 19.80% | 19.10% | 18.40%
Taxes, other than income |  |  |
Domestic property and other | $ 45 | $ 45 | $ 41
Total | 45 | 45 | $ 41
Deferred Tax Assets, Valuation Allowances | $ 2 | $ 3 |

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- Definition The portion of the difference between total income tax expense (benefit) as reported in the Income Statement for the current period and the expected income tax expense (benefit) computed attributable to the amortization of excess deferred income taxes due to a change in the federal corporate income tax rate. + References No definition available. + Details
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- Definition The component of total income tax expense for the period comprised of the net change during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law specific to operating loss carryforwards. + References No definition available. + Details
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- Definition The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations specific to operating loss carryforwards. + References No definition available. + Details
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- Definition The component of total income tax expense for the period comprised of the net change in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws specific to operating loss carryforwards. + References No definition available. + Details
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- Definition The portion of the difference between total income tax expense (benefit) as reported in the Income Statement and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the state regulatory treatment of depreciation-related timing differences. + References No definition available. + Details
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- Definition The component of income tax expense deducted from an entities' federal taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits. + References No definition available. + Details
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- Definition Amount of tax expense (benefit) of reclassification of gain (loss) from accumulated other comprehensive income (AOCI), realized upon the sale or liquidation of an investment in a foreign entity. + References No definition available. + Details
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- Definition Federal, state, and foreign tax expense (benefits) recorded to other comprehensive income is not a component of income tax expense from continuing operations on the Statement of Income. + References No definition available. + Details
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