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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 835
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-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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Balance Type:	credit
Period Type:	instant

- Definition

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

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No definition available.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
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-SubTopic 210
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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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Financing Activities - Long-term Debt (Details) - USD ($) $ in Millions	May 31, 2021	Apr. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
PPL Capital Funding [Member]
Long-term Debt (Numeric) [Abstract]
Capacity			$ 1,650
Borrowed			100	$ 400
PPL Capital Funding [Member] \| Term Loan Facility [Member]
Long-term Debt (Numeric) [Abstract]
Capacity			100
Borrowed			$ 100	$ 100
PPL Capital Funding [Member] \| Term Loan Facility [Member] \| Repayment \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount		$ 100
LGE [Member] \| Trimble County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
LGE [Member] \| Jefferson County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
LGE [Member] \| Louisville/Jefferson County Metro Government of Kentucky Pollution Control Revenue Bonds, 2003 Series A \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount		$ 128
Stated interest rate		2.00%
LG And E And KU Energy LLC [Member] \| LGE [Member] \| Trimble County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
LG And E And KU Energy LLC [Member] \| LGE [Member] \| Jefferson County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
LG And E And KU Energy LLC [Member] \| LGE [Member] \| Louisville/Jefferson County Metro Government of Kentucky Pollution Control Revenue Bonds, 2003 Series A \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount		$ 128
Stated interest rate		2.00%
Louisville Gas And Electric Co [Member] \| Trimble County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
Louisville Gas And Electric Co [Member] \| Jefferson County Pollution Control Revenue Bonds, 2001 Series B \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount	$ 35
Stated interest rate	1.35%
Louisville Gas And Electric Co [Member] \| Louisville/Jefferson County Metro Government of Kentucky Pollution Control Revenue Bonds, 2003 Series A \| Remarketed [Member] \| Subsequent Event [Member]
Long-term Debt (Numeric) [Abstract]
Principal amount		$ 128
Stated interest rate		2.00%