v3.25.2
Income Taxes (Tables)
 6 Months Ended
Jun. 30, 2025
Income Taxes [Line Items]  
Schedule of Effective Income Tax Rate Reconciliation
Reconciliations of income tax expense (benefit) for the periods ended June 30 are as follows.
(PPL)
Three MonthsSix Months
2025202420252024
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$48 $50 $157 $132 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit8 11 28 28 
Valuation allowance adjustments2 2 6 5 
Amortization of investment tax credit including deferred taxes on basis adjustment(1)— (4)(2)
Utility rate-making tax adjustments (a)(5)(5)(14)(10)
Amortization of excess deferred federal and state income taxes (6)(7)(21)(20)
Other1 (1)(3)(2)
Total increase (decrease)(1)— (8)(1)
Total income tax expense (benefit)$47 $50 $149 $131 

(a)     Primarily consists of tax impacts of AFUDC equity and related depreciation across PPL's regulated utility subsidiaries and flow through tax impacts of Pennsylvania utility ratemaking. Flow through occurs when the regulator excludes deferred tax expense or benefit from recoverable costs when determining income tax expense.
PPL Electric Utilities Corp [Member]  
Income Taxes [Line Items]  
Schedule of Effective Income Tax Rate Reconciliation
Reconciliations of income tax expense (benefit) for the periods ended June 30 are as follows.
(PPL Electric)  
Three MonthsSix Months
2025202420252024
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$38 $41 $88 $83 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit11 13 27 26 
Utility rate-making tax adjustments (a)(6)(6)(12)(10)
Amortization of excess deferred federal and state income taxes(2)(3)(5)(5)
Other2 1 (1)— 
Total increase (decrease)5 5 9 11 
Total income tax expense (benefit) $43 $46 $97 $94 

(a)     Primarily consists of tax impacts of AFUDC equity and related depreciation and flow through tax impacts of Pennsylvania utility ratemaking. Flow through occurs when the regulator excludes deferred tax expense or benefit from recoverable costs when determining income tax expense.
Louisville Gas And Electric Co [Member]  
Income Taxes [Line Items]  
Schedule of Effective Income Tax Rate Reconciliation
Reconciliations of income tax expense (benefit) for the periods ended June 30 are as follows.
(LG&E)  
 Three MonthsSix Months
 2025202420252024
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$15 $17 $42 $41 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit3 3 8 7 
Amortization of excess deferred federal and state income taxes(3)(3)(7)(6)
Other(1)— (3)(1)
Total increase (decrease)(1)— (2)— 
Total income tax expense (benefit)$14 $17 $40 $41 
Kentucky Utilities Co [Member]  
Income Taxes [Line Items]  
Schedule of Effective Income Tax Rate Reconciliation
Reconciliations of income tax expense (benefit) for the periods ended June 30 are as follows.
(KU)  
 Three MonthsSix Months
 2025202420252024
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$20 $20 $53 $48 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit4 4 10 9 
Amortization of excess deferred federal and state income taxes(4)(4)(9)(9)
Other(1)(1)(4)(2)
Total increase (decrease)(1)(1)(3)(2)
Total income tax expense (benefit)$19 $19 $50 $46