Financing Activities - Long-term Debt (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Aug. 31, 2024	Mar. 31, 2024	Jan. 31, 2024	Dec. 31, 2024	Aug. 01, 2024	Mar. 01, 2024	Jan. 01, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal outstanding				$ 16,674				$ 14,775
Unamortized premium and (discount), net				(57)				(55)
Unamortized debt issuance costs				(114)				(108)
Total Long-term Debt				16,503				14,612
Less current portion of Long-term debt				551				1
Long-term Debt				15,952				14,611
Aggregate maturities of long-term debt (Details) [Abstract]
2022				551
2023				904
2024				428
2025				1,350
2026				116
Thereafter				$ 13,325
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				4.34%
Principal outstanding				$ 4,316				3,066
Senior Secured Notes - First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				4.38%
Principal outstanding				$ 10,878				10,229
Junior Subordinated Notes [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				7.25%
Principal outstanding				$ 480				480
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				$ 894
Exchangeable Senior Unsecured Notes
Debt Instrument [Line Items]
Weighted-Average Rate				2.88%
Principal outstanding				$ 1,000				1,000
PPL Capital Funding [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity				1,450
PPL Capital Funding [Member] | Senior Notes [Member] | Senior Notes due 2034
Long-term Debt (Numeric) [Abstract]
Principal amount					$ 750
Stated interest rate					5.25%
Aggregate maturities of long-term debt (Details) [Abstract]
Proceeds from Issuance of Senior Long-Term Debt	$ 741
PPL Electric [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity				650
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				13,300				12,400
PPL Electric [Member] | First Mortgage Bonds [Member] | First Mortgage Bonds due 2034
Long-term Debt (Numeric) [Abstract]
Principal amount							$ 650
Stated interest rate							4.85%
Aggregate maturities of long-term debt (Details) [Abstract]
Proceeds from Issuance of First Mortgage Bond			$ 644
LGE [Member]
Aggregate maturities of long-term debt (Details) [Abstract]
Capacity				500
LGE [Member] | First Mortgage Bonds [Member] | 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien				$ 6,000				5,900
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				400
KU [Member] | First Mortgage Bonds [Member] | 2010 Mortgage Indenture [Member]
Long-term Debt (Numeric) [Abstract]
Aggregate carrying value of property subject to lien				$ 7,500				7,300
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
Rhode Island Energy | Senior Notes [Member] | Senior Notes due 2034
Long-term Debt (Numeric) [Abstract]
Principal amount						$ 500
Stated interest rate						5.35%
Aggregate maturities of long-term debt (Details) [Abstract]
Proceeds from Issuance of Senior Long-Term Debt		$ 496
PPL Electric Utilities Corp [Member]
Debt Instrument [Line Items]
Principal outstanding				5,299				4,649
Unamortized discount				(42)				(42)
Unamortized debt issuance costs				(43)				(40)
Total Long-term Debt				5,214				4,567
Less current portion of Long-term debt				0				0
Long-term Debt				5,214				4,567
Aggregate maturities of long-term debt (Details) [Abstract]
2022				0
2023				0
2024				108
2025				0
2026				116
Thereafter				5,075
Capacity				$ 650
PPL Electric Utilities Corp [Member] | Senior Secured Notes - First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				4.64%
Principal outstanding				$ 5,299				4,649
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				13,300				12,400
PPL Electric Utilities Corp [Member] | First Mortgage Bonds [Member] | First Mortgage Bonds due 2034
Long-term Debt (Numeric) [Abstract]
Principal amount							$ 650
Stated interest rate							4.85%
Aggregate maturities of long-term debt (Details) [Abstract]
Proceeds from Issuance of First Mortgage Bond			$ 644
Louisville Gas And Electric Co [Member]
Debt Instrument [Line Items]
Principal outstanding				2,489				2,489
Unamortized discount				(4)				(4)
Unamortized debt issuance costs				(14)				(16)
Total Long-term Debt				2,471				2,469
Less current portion of Long-term debt				300				0
Long-term Debt				2,171				2,469
Aggregate maturities of long-term debt (Details) [Abstract]
2022				300
2023				90
2024				260
2025				0
2026				0
Thereafter				1,839
Capacity				$ 500
Louisville Gas And Electric Co [Member] | First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				4.01%
Principal outstanding				$ 2,489				2,489
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				$ 6,000				5,900
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				$ 538
Aggregate amount of tax-exempt revenue bonds in a variable rate mode				66
Kentucky Utilities Co [Member]
Debt Instrument [Line Items]
Principal outstanding				3,089				3,089
Debt Instrument, Unamortized Premium				4				5
Unamortized discount				(8)				(9)
Unamortized debt issuance costs				(19)				(21)
Total Long-term Debt				3,066				3,064
Less current portion of Long-term debt				250				0
Long-term Debt				2,816				3,064
Aggregate maturities of long-term debt (Details) [Abstract]
2022				250
2023				164
2024				60
2025				0
2026				0
Thereafter				2,615
Capacity				$ 400
Kentucky Utilities Co [Member] | First Mortgage Bonds [Member]
Debt Instrument [Line Items]
Weighted-Average Rate				4.22%
Principal outstanding				$ 3,089				3,089
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				$ 7,500				$ 7,300
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				$ 356
Aggregate amount of tax-exempt revenue bonds in a variable rate mode				$ 33