Financing Activities - Credit Arrangements (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 16, 2022	Jul. 29, 2022	Mar. 31, 2022	Feb. 28, 2022	Dec. 31, 2021
PPL Capital Funding [Member]
Line of Credit Facility [Line Items]
Capacity	$ 1,450
Borrowed	0					$ 0
Letters of Credit and Commercial Paper Issued	460					15
Unused Capacity	990
PPL Capital Funding [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	1,250
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	400					0
Unused Capacity	850
PPL Capital Funding [Member] | Bilateral Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	100			$ 100	$ 50
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	60					15
Unused Capacity	40
PPL Capital Funding [Member] | Bilateral Credit Facility [Member] | Rhode Island Energy
Line of Credit Facility [Line Items]
Letters of Credit and Commercial Paper Issued	45
PPL Capital Funding [Member] | Bilateral Credit Facility #2
Line of Credit Facility [Line Items]
Capacity	100			$ 100	$ 50
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	100
PPL Electric [Member]
Line of Credit Facility [Line Items]
Capacity	900
Borrowed	250					0
Letters of Credit and Commercial Paper Issued	1					1
Unused Capacity	649
PPL Electric [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	650
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	1					1
Unused Capacity	649
PPL Electric [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	250	$ 250
Borrowed	250	$ 250				0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	0
Interest rate on outstanding borrowing		3.77%
LGE [Member]
Line of Credit Facility [Line Items]
Capacity	800
Borrowed	300					0
Letters of Credit and Commercial Paper Issued	110					69
Unused Capacity	390
LGE [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	500
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	110					69
Unused Capacity	390
LGE [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	300		$ 300
Borrowed	300		$ 300			0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	0
Interest rate on outstanding borrowing			3.23%
KU [Member]
Line of Credit Facility [Line Items]
Capacity	700
Borrowed	300					0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	400
KU [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	400
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	400
KU [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	300		$ 300
Borrowed	300		$ 300			0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	0
Interest rate on outstanding borrowing			3.23%
PPL Electric Utilities Corp [Member]
Line of Credit Facility [Line Items]
Capacity	900
Borrowed	250					0
Letters of Credit and Commercial Paper Issued	1					1
Unused Capacity	649
PPL Electric Utilities Corp [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	650
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	1					1
Unused Capacity	649
PPL Electric Utilities Corp [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	250	$ 250
Borrowed	250	$ 250				0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	0
Interest rate on outstanding borrowing		3.77%
Louisville Gas And Electric Co [Member]
Line of Credit Facility [Line Items]
Capacity	800
Borrowed	300					0
Letters of Credit and Commercial Paper Issued	110					69
Unused Capacity	390
Louisville Gas And Electric Co [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	500
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	110					69
Unused Capacity	390
Louisville Gas And Electric Co [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	300		$ 300
Borrowed	300		$ 300			0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	0
Interest rate on outstanding borrowing			3.23%
Kentucky Utilities Co [Member]
Line of Credit Facility [Line Items]
Capacity	700
Borrowed	300					0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	400
Kentucky Utilities Co [Member] | Syndicated Credit Facility [Member]
Line of Credit Facility [Line Items]
Capacity	400
Borrowed	0					0
Letters of Credit and Commercial Paper Issued	0					0
Unused Capacity	400
Kentucky Utilities Co [Member] | Term Loan Facility [Member]
Line of Credit Facility [Line Items]
Capacity	300		$ 300
Borrowed	300		$ 300			0
Letters of Credit and Commercial Paper Issued	0					$ 0
Unused Capacity	$ 0
Interest rate on outstanding borrowing			3.23%