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Financing Activities - Credit Arrangements (Details) - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
PPL Capital Funding [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | $ 1,550 |
Borrowed | 0 | $ 400
Letters of Credit and Commercial Paper Issued | 15 | 417
Unused Capacity | 1,535 |
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 1,450 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued | 0 | 402
Unused Capacity | 1,450 |
PPL Capital Funding [Member] | Term Loan Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 0 |
Borrowed | 0 | 100
Letters of Credit and Commercial Paper Issued | 0 | 0
Unused Capacity | 0 |
PPL Capital Funding [Member] | Term Loan Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 0 |
Borrowed | 0 | 100
Letters of Credit and Commercial Paper Issued | 0 | 0
Unused Capacity | 0 |
PPL Capital Funding [Member] | Term Loan Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 0 |
Borrowed | 0 | 200
Letters of Credit and Commercial Paper Issued | 0 | 0
Unused Capacity | 0 |
PPL Capital Funding [Member] | Bilateral Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 50 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued | 15 | 15
Unused Capacity | 35 |
PPL Capital Funding [Member] | Bilateral Credit Facility #2 |  |
Line of Credit Facility [Line Items] |  |
Capacity | 50 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued | 0 | 0
Unused Capacity | 50 |
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 |
LGE [Member] | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 500 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued | 0 | 262
Unused Capacity | 500 |
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 | 203
Unused Capacity | 400 |
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 |
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 | 0 | 262
Unused Capacity | 500 |
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 | $ 203
Unused Capacity | $ 400 |

X
- Definition Aggregate amount of letters of credit issued under a credit facility as of the balance-sheet date, if applicable and inclusion of amounts issued under separate commercial paper program that reduces this facilities capacity. + References No definition available. + Details
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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 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition 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. + References No definition available. + Details
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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. + 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 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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