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Contractual interest rate for funds borrowed, under the debt agreement.

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Name:	dei_LegalEntityAxis=ppl_PplElectricUtilitiesCorpMember
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Name:	dei_LegalEntityAxis=ppl_LouisvilleGasAndElectricCoMember
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Financing Activities - Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2022	Sep. 16, 2022	Aug. 31, 2022	Jul. 29, 2022
Debt Instrument [Line Items]
Principal outstanding	$ 13,353	$ 11,251
Unamortized premium and (discount), net	(32)	(34)
Unamortized debt issuance costs	(78)	(77)
Total Long-term Debt	13,243	11,140
Less current portion of Long-term debt	354	474
Long-term Debt	12,889	10,666
Aggregate maturities of long-term debt (Details) [Abstract]
2022	354
2023	1,501
2024	551
2025	904
2026	303
Thereafter	9,740
Loss on Extinguishment of Debt	$ 0	(395)	$ 0
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	3.95%
Principal outstanding	$ 3,066	1,566
Senior Secured Notes - First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	4.06%
Principal outstanding	$ 8,957	9,205
Junior Subordinated Notes [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	7.39%
Principal outstanding	$ 480	480
Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	5.21%
Principal outstanding	$ 850	0
First Mortgage Bonds [Member] \| Tax Exempt Revenue Bonds [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate amount of tax-exempt revenue bonds in a term rate mode	782
PPL Capital Funding [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	1,450
PPL Electric [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	900
PPL Electric [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	250				$ 250
Interest rate on outstanding borrowing					3.77%
PPL Electric [Member] \| LCIDA Pollution Control Revenue Refunding Bonds 2016 Series B \| Remarketed [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount						$ 108
Stated interest rate						2.63%
PPL Electric [Member] \| LCIDA Pollution Control Revenue Refunding Bonds 2016 Series A \| Remarketed [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount				$ 116
Stated interest rate				3.00%
PPL Electric [Member] \| Senior Secured Notes - First Mortgage Bonds [Member] \| Currently Able To Be Called
Debt Instrument [Line Items]
Principal outstanding	250
PPL Electric [Member] \| Senior Secured Notes - First Mortgage Bonds [Member] \| Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	11,800	11,300
LGE [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	800
LGE [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	300						$ 300
Interest rate on outstanding borrowing							3.23%
LGE [Member] \| First Mortgage Bonds [Member] \| 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	$ 5,800	5,700
LGE [Member] \| First Mortgage Bonds [Member] \| Tax Exempt Revenue Bonds [Member]
Long-term Debt (Numeric) [Abstract]
Minimum length of time to convert interest rate mode	1 year
Aggregate amount of tax-exempt revenue bonds in a variable rate mode	$ 66
KU [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	700
KU [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	300						$ 300
Interest rate on outstanding borrowing							3.23%
KU [Member] \| First Mortgage Bonds [Member] \| 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	$ 7,100	6,900
KU [Member] \| First Mortgage Bonds [Member] \| Tax Exempt Revenue Bonds [Member]
Long-term Debt (Numeric) [Abstract]
Minimum length of time to convert interest rate mode	1 year
Aggregate amount of tax-exempt revenue bonds in a variable rate mode	$ 33
PPL Electric Utilities Corp [Member]
Debt Instrument [Line Items]
Principal outstanding	4,539	4,539
Unamortized discount	(22)	(22)
Unamortized debt issuance costs	(31)	(33)
Total Long-term Debt	4,486	4,484
Less current portion of Long-term debt	340	474
Long-term Debt	4,146	4,010
Aggregate maturities of long-term debt (Details) [Abstract]
2022	340
2023	900
2024	0
2025	0
2026	108
Thereafter	3,191
Capacity	900
PPL Electric Utilities Corp [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	$ 250				$ 250
Interest rate on outstanding borrowing					3.77%
PPL Electric Utilities Corp [Member] \| LCIDA Pollution Control Revenue Refunding Bonds 2016 Series B \| Remarketed [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount						$ 108
Stated interest rate						2.63%
PPL Electric Utilities Corp [Member] \| LCIDA Pollution Control Revenue Refunding Bonds 2016 Series A \| Remarketed [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount				$ 116
Stated interest rate				3.00%
PPL Electric Utilities Corp [Member] \| Senior Secured Notes - First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	4.26%
Principal outstanding	$ 4,289	4,539
PPL Electric Utilities Corp [Member] \| Senior Secured Notes - First Mortgage Bonds [Member] \| Currently Able To Be Called
Debt Instrument [Line Items]
Principal outstanding	250
PPL Electric Utilities Corp [Member] \| Senior Secured Notes - First Mortgage Bonds [Member] \| Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	$ 11,800	11,300
PPL Electric Utilities Corp [Member] \| Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	5.17%
Principal outstanding	$ 250	0
Louisville Gas And Electric Co [Member]
Debt Instrument [Line Items]
Principal outstanding	2,324	2,024
Unamortized discount	(4)	(4)
Unamortized debt issuance costs	(13)	(14)
Total Long-term Debt	2,307	2,006
Less current portion of Long-term debt	0	0
Long-term Debt	2,307	2,006
Aggregate maturities of long-term debt (Details) [Abstract]
2022	0
2023	300
2024	300
2025	90
2026	195
Thereafter	1,439
Capacity	800
Louisville Gas And Electric Co [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	$ 300						$ 300
Interest rate on outstanding borrowing							3.23%
Louisville Gas And Electric Co [Member] \| Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	5.22%
Principal outstanding	$ 300	0
Louisville Gas And Electric Co [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	3.70%
Principal outstanding	$ 2,024	2,024
Louisville Gas And Electric Co [Member] \| First Mortgage Bonds [Member] \| 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	$ 5,800	5,700
Louisville Gas And Electric Co [Member] \| First Mortgage Bonds [Member] \| Tax Exempt Revenue Bonds [Member]
Long-term Debt (Numeric) [Abstract]
Minimum length of time to convert interest rate mode	1 year
Aggregate amount of tax-exempt revenue bonds in a term rate mode	$ 473
Aggregate amount of tax-exempt revenue bonds in a variable rate mode	66
Kentucky Utilities Co [Member]
Debt Instrument [Line Items]
Principal outstanding	2,942	2,642
Debt Instrument, Unamortized Premium	5	5
Unamortized discount	(9)	(9)
Unamortized debt issuance costs	(18)	(20)
Total Long-term Debt	2,920	2,618
Less current portion of Long-term debt	13	0
Long-term Debt	2,907	2,618
Aggregate maturities of long-term debt (Details) [Abstract]
2022	13
2023	300
2024	250
2025	164
2026	0
Thereafter	2,215
Capacity	700
Kentucky Utilities Co [Member] \| Term Loan Credit Facility [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity	$ 300						$ 300
Interest rate on outstanding borrowing							3.23%
Kentucky Utilities Co [Member] \| Term Loan Credit Facility [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	5.22%
Principal outstanding	$ 300	0
Kentucky Utilities Co [Member] \| First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate	4.00%
Principal outstanding	$ 2,642	2,642
Kentucky Utilities Co [Member] \| First Mortgage Bonds [Member] \| 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien	$ 7,100	$ 6,900
Kentucky Utilities Co [Member] \| First Mortgage Bonds [Member] \| Tax Exempt Revenue Bonds [Member]
Long-term Debt (Numeric) [Abstract]
Minimum length of time to convert interest rate mode	1 year
Aggregate amount of tax-exempt revenue bonds in a term rate mode	$ 309
Aggregate amount of tax-exempt revenue bonds in a variable rate mode	$ 33