Face (par) amount of debt instrument at time of issuance.

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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Financing Activities - Long-term Debt (Details) - USD ($) $ in Millions	Apr. 01, 2020	Mar. 31, 2020	Dec. 31, 2019
PPL Electric [Member]
Debt Instrument [Line Items]
Interest rate on outstanding borrowing		1.96%
PPL Capital Funding [Member]
Debt Instrument [Line Items]
Capacity		$ 1,750
Interest rate on outstanding borrowing		1.97%
Borrowed		$ 859	$ 0
PPL Capital Funding [Member] \| Senior Notes [Member] \| Senior Notes Due 2030 [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 1,000
Stated interest rate	4.125%
Proceeds from Issuance of Secured Debt	$ 993
PPL Capital Funding [Member] \| Term Loan Facility [Member] \| Term Loan Due 2022 [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Capacity	$ 100
Interest rate on outstanding borrowing	1.72%
Borrowed	$ 100
LGE [Member]
Debt Instrument [Line Items]
Capacity		$ 500
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
KU [Member]
Debt Instrument [Line Items]
Capacity		$ 400
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
PPL Electric Utilities Corp [Member]
Debt Instrument [Line Items]
Interest rate on outstanding borrowing		1.96%
LG And E And KU Energy LLC [Member] \| LGE [Member]
Debt Instrument [Line Items]
Capacity		$ 500
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
LG And E And KU Energy LLC [Member] \| KU [Member]
Debt Instrument [Line Items]
Capacity		$ 400
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
Louisville Gas And Electric Co [Member]
Debt Instrument [Line Items]
Capacity		$ 500
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
Kentucky Utilities Co [Member]
Debt Instrument [Line Items]
Capacity		$ 400
Interest rate on outstanding borrowing		1.81%
Borrowed		$ 100	0
Term Loan Facility [Member] \| PPL Capital Funding [Member]
Debt Instrument [Line Items]
Capacity		$ 200
Interest rate on outstanding borrowing		1.96%
Borrowed		$ 200	$ 0
Term Loan Facility [Member] \| PPL Capital Funding [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Capacity	$ 100
Interest rate on outstanding borrowing	1.73%
Borrowed	$ 100