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Financing Activities - Long-term Debt (Details) - USD ($) $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 | Jan. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Long-term Debt (Numeric) [Abstract] |  |  |  |
Long-term debt due within one year |  |  | $ 1 | $ 1
Long-term Debt, Excluding Current Maturities |  |  | 15,756 | 14,611
PPL Electric [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 650 |
Borrowed |  |  | 0 | 0
PPL Electric [Member] | First Mortgage Bond [Member] | First Mortgage Bonds due 2034 |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Principal amount |  | $ 650 |  |
Stated interest rate |  | 4.85% |  |
Proceeds from Issuance of First Mortgage Bond |  | $ 644 |  |
PPL Capital Funding [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 1,450 |
Borrowed |  |  | 0 | 0
LGE [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 500 |
Borrowed |  |  | 0 | 0
KU [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 400 |
Borrowed |  |  | 0 | 0
Rhode Island Energy | First Mortgage Bond [Member] | Senior Notes due 2034 |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Principal amount |  |  | $ 500 |
Stated interest rate |  |  | 5.35% |
Proceeds from Issuance of First Mortgage Bond | $ 496 |  |  |
PPL Electric Utilities Corp [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | $ 650 |
Borrowed |  |  | 0 | 0
Long-term Debt, Excluding Current Maturities |  |  | 5,212 | 4,567
PPL Electric Utilities Corp [Member] | First Mortgage Bond [Member] | First Mortgage Bonds due 2034 |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Principal amount |  | $ 650 |  |
Stated interest rate |  | 4.85% |  |
Proceeds from Issuance of First Mortgage Bond |  | $ 644 |  |
Louisville Gas And Electric Co [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 500 |
Borrowed |  |  | 0 | 0
Long-term Debt, Excluding Current Maturities |  |  | 2,470 | 2,469
Kentucky Utilities Co [Member] |  |  |  |
Long-term Debt (Numeric) [Abstract] |  |  |  |
Capacity |  |  | 400 |
Borrowed |  |  | 0 | 0
Long-term Debt, Excluding Current Maturities |  |  | $ 3,065 | $ 3,064

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482949/835-30-55-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69C Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482900/835-30-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + 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 Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition The cash inflow from amounts received from a long-term debt instrument secured by a first mortgage deed of trust, containing a pledge of real property. The lender has the highest claim on the property in case of default. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
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