Income and Other Taxes (Tax Reform) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Tax Reform [Line Items]
Income Tax Expense (Benefit)	$ 228	$ 184	$ 201
Net Increase in Regulatory Liability	68	37	119
Deferred Tax Liabilities, Net	3,344	3,095
PPL Electric Utilities Corp [Member]
Tax Reform [Line Items]
Income Tax Expense (Benefit)	176	168	174
Net Increase in Regulatory Liability	101	38	59
Deferred Tax Liabilities, Net	1,726	1,573
Louisville Gas And Electric Co [Member]
Tax Reform [Line Items]
Income Tax Expense (Benefit)	77	69	63
Net Increase in Regulatory Liability	3	(25)	(17)
Deferred Tax Liabilities, Net	803	776
Kentucky Utilities Co [Member]
Tax Reform [Line Items]
Income Tax Expense (Benefit)	89	77	76
Net Increase in Regulatory Liability	(23)	(25)	$ 19
Deferred Tax Liabilities, Net	$ 924	$ 912