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Income Taxes
 9 Months Ended
Sep. 30, 2024
Income Tax Disclosure [Abstract]  
Income Taxes
5. Income Taxes

Reconciliations of income tax expense (benefit) for the periods ended September 30 are as follows.
(PPL)
Three MonthsNine Months
2024202320242023
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$57 $60 $189 $167 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit20 16 48 49 
Income tax credits (a)(2)(9)(4)(11)
Utility rate-making tax adjustments (b)(4)(2)(14)(9)
Amortization of excess deferred federal and state income taxes (13)(13)(33)(33)
Other— 6 3 7 
Total increase (decrease)1 (2)— 3 
Total income tax expense (benefit)$58 $58 $189 $170 

(a)    The amounts for the three and nine month periods ended September 30, 2023 primarily consist of a deferred tax benefit from renewable tax credits acquired at a discount.
(b)     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)  
Three MonthsNine Months
2024202320242023
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$40 $38 $122 $107 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit13 13 39 36 
Utility rate-making tax adjustments (a)(2)(1)(12)(8)
Amortization of excess deferred federal and state income taxes(3)(4)(8)(8)
Other(1)(3)— (1)
Total increase (decrease)7 5 19 19 
Total income tax expense (benefit) $47 $43 $141 $126 

(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.

(LG&E)  
 Three MonthsNine Months
 2024202320242023
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$20 $21 $62 $56 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit4 4 11 10 
Amortization of excess deferred federal and state income taxes(3)(3)(9)(9)
Other(1)(1)(3)(2)
Total increase (decrease)— — (1)(1)
Total income tax expense (benefit)$20 $21 $61 $55 

(KU)  
 Three MonthsNine Months
 2024202320242023
Federal income tax on Income Before Income Taxes at statutory tax rate - 21%$26 $26 $74 $63 
Increase (decrease) due to:    
State income taxes, net of federal income tax benefit4 5 13 12 
Amortization of excess deferred federal and state income taxes(4)(5)(13)(13)
Other(2)(2)(4)(3)
Total increase (decrease)(2)(2)(4)(4)
Total income tax expense (benefit)$24 $24 $70 $59 

Other

IRS Revenue Procedure 2023-15 (PPL and LG&E)

On April 14, 2023, the IRS issued Revenue Procedure 2023-15, which provides a safe harbor method of accounting that taxpayers may use to determine whether expenses to repair, maintain, replace, or improve natural gas transmission and distribution property must be capitalized for tax purposes. PPL and LG&E are currently reviewing the revenue procedure to determine what impact the guidance may have on their financial statements.

Transfer of Certain Credits under the Inflation Reduction Act (PPL)
The IRS released the final Internal Revenue Code Section 6418 regulations related to the transfer of certain credits under the Inflation Reduction Act. The regulations became effective on July 1, 2024 and did not and are not expected to have a material impact on the financial statements regarding prior or future credit transfers.