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Goodwill and Other Intangible Assets (Other Intangibles - Indefinite-Lived) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Not subject to amortization due to indefinite life: [Line Items]      
Gross carrying amount $ 18 $ 18  
Gross carrying amount - other intangible assets 597 571  
Intangible assets with no regulatory offset [Member]      
Not subject to amortization due to indefinite life: [Line Items]      
Amortization expense 5 5 $ 5
Land Rights and Easements [Member]      
Not subject to amortization due to indefinite life: [Line Items]      
Gross carrying amount 18 18  
PPL Electric Utilities Corp [Member]      
Not subject to amortization due to indefinite life: [Line Items]      
Gross carrying amount - other intangible assets 416 408  
PPL Electric Utilities Corp [Member] | Intangible assets with no regulatory offset [Member]      
Not subject to amortization due to indefinite life: [Line Items]      
Amortization expense 4 4 $ 4
PPL Electric Utilities Corp [Member] | Land Rights and Easements [Member]      
Not subject to amortization due to indefinite life: [Line Items]      
Gross carrying amount $ 18 $ 17