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Financing Activities - Credit Arrangements (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances $ 456 $ 303
PPL Capital Funding [Member]    
Financing Activities [Line Items]    
Capacity 1,700  
Borrowed 0 0
Letters of credit and commercial paper issued 473 153
Unused capacity 1,227  
PPL Capital Funding [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 355 138
PPL Capital Funding [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 1,500  
Borrowed 0 0
Letters of credit and commercial paper issued 456 138
Unused capacity $ 1,044  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 400  
Line of Credit Facility, Borrowing Capacity Sublimit 1,100 1,000
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 355 138
PPL Capital Funding [Member] | Bilateral Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 100  
Borrowed 0 0
Letters of credit and commercial paper issued 0 0
Unused capacity $ 100  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 30  
PPL Capital Funding [Member] | Bilateral Credit Facility    
Financing Activities [Line Items]    
Capacity 100  
Borrowed 0 0
Letters of credit and commercial paper issued 17 15
Unused capacity $ 83  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
PPL Electric [Member]    
Financing Activities [Line Items]    
Capacity $ 750  
Borrowed 0 0
Letters of credit and commercial paper issued 6 1
Unused capacity 744  
PPL Electric [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 0
PPL Electric [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 750  
Borrowed 0 0
Letters of credit and commercial paper issued 6 1
Unused capacity $ 744  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
PPL Electric [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
LGE [Member]    
Financing Activities [Line Items]    
Capacity $ 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 25
Unused capacity 600  
LGE [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 25
LGE [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 25
Unused capacity $ 600  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
LGE [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
KU [Member]    
Financing Activities [Line Items]    
Capacity $ 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 140
Unused capacity 600  
KU [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 140
KU [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 140
Unused capacity $ 600  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
KU [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Rhode Island Energy | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances $ 101 0
Rhode Island Energy | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Line of Credit Facility, Borrowing Capacity Sublimit 400 250
Rhode Island Energy | Syndicated Credit Facility [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 101 0
PPL Electric Utilities Corp [Member]    
Financing Activities [Line Items]    
Capacity 750  
Borrowed 0 0
Letters of credit and commercial paper issued 6 1
Unused capacity 744  
PPL Electric Utilities Corp [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 0
PPL Electric Utilities Corp [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 750  
Borrowed 0 0
Letters of credit and commercial paper issued 6 1
Unused capacity $ 744  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
PPL Electric Utilities Corp [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Louisville Gas And Electric Co [Member]    
Financing Activities [Line Items]    
Capacity $ 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 25
Unused capacity 600  
Louisville Gas And Electric Co [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 25
Louisville Gas And Electric Co [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 25
Unused capacity $ 600  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
Louisville Gas And Electric Co [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Kentucky Utilities Co [Member]    
Financing Activities [Line Items]    
Capacity $ 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 140
Unused capacity 600  
Kentucky Utilities Co [Member] | Commercial Paper [Member]    
Financing Activities [Line Items]    
Commercial paper issuances 0 140
Kentucky Utilities Co [Member] | Syndicated Credit Facility [Member]    
Financing Activities [Line Items]    
Capacity 600  
Borrowed 0 0
Letters of credit and commercial paper issued 0 $ 140
Unused capacity $ 600  
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%  
Potential capacity increase $ 250  
Kentucky Utilities Co [Member] | Term Loan Credit Facility [Member]    
Financing Activities [Line Items]    
Maximum percentage of debt to total capitalization allowed under the credit facility 70.00%