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Financing Activities - Credit Arrangements (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | $ 0 | $ 993
PPL Capital Funding [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 1,450 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 14 | 403
Unused Capacity | 1,436 |
PPL Capital Funding [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 365
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 1,250 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 390
Unused Capacity | 1,250 |
Line of Credit Facility, Borrowing Capacity Sublimit | 1,000 |
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 365
PPL Capital Funding [Member] | Bilateral Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 100 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 14 | 13
Unused Capacity | 86 |
PPL Capital Funding [Member] | Bilateral Credit Facility #2 |  |
Line of Credit Facility [Line Items] |  |
Capacity | 100 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 0
Unused Capacity | 100 |
PPL Electric [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 650 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 1 | 511
Unused Capacity | 649 |
PPL Electric [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 510
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 (c) | 1 | 511
Unused Capacity | 649 |
LGE [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 500 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 0
Unused Capacity | 500 |
LGE [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 0
LGE [Member] | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 500 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 0
Unused Capacity | 500 |
KU [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 400 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 93
Unused Capacity | 400 |
KU [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 93
KU [Member] | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 400 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 93
Unused Capacity | 400 |
Rhode Island Energy | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 25
Rhode Island Energy | Syndicated Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Borrowing Capacity Sublimit | 250 |
Line of Credit Facility, Borrowing Capacity Sublimit, Maximum | 600 |
Rhode Island Energy | Syndicated Credit Facility [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 25
PPL Electric Utilities Corp [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 650 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 1 | 511
Unused Capacity | 649 |
PPL Electric Utilities Corp [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 510
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 (c) | 1 | 511
Unused Capacity | 649 |
Louisville Gas And Electric Co [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 500 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 0
Unused Capacity | 500 |
Louisville Gas And Electric Co [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 0
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 (c) | 0 | 0
Unused Capacity | 500 |
Kentucky Utilities Co [Member] |  |
Line of Credit Facility [Line Items] |  |
Capacity | 400 |
Borrowed | 0 | 0
Letters of Credit and Commercial Paper Issued (c) | 0 | 93
Unused Capacity | 400 |
Kentucky Utilities Co [Member] | Commercial Paper [Member] |  |
Line of Credit Facility [Line Items] |  |
Commercial Paper Issuances (c) | 0 | 93
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 (c) | 0 | $ 93
Unused Capacity | $ 400 |

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + 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 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + 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 -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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