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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Short-term Debt [Line Items] |  |
Capacity | $ 3,300 |
Commercial Paper Issuances (c) | 0 | $ 993
Unused Capacity | 3,300 |
PPL Capital Funding [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.66%
Capacity | 1,350 |
Commercial Paper Issuances (c) | 0 | $ 365
Unused Capacity | 1,350 |
PPL Electric [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.67%
Capacity | 650 |
Commercial Paper Issuances (c) | 0 | $ 510
Unused Capacity | 650 |
LGE [Member] |  |
Short-term Debt [Line Items] |  |
Capacity | 500 |
Commercial Paper Issuances (c) | 0 | $ 0
Unused Capacity | 500 |
KU [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.64%
Capacity | 400 |
Commercial Paper Issuances (c) | 0 | $ 93
Unused Capacity | 400 |
Rhode Island Energy |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.72%
Capacity | 400 |
Commercial Paper Issuances (c) | 0 | $ 25
Unused Capacity | 400 |
PPL Electric Utilities Corp [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.67%
Capacity | 650 |
Commercial Paper Issuances (c) | 0 | $ 510
Unused Capacity | 650 |
Louisville Gas And Electric Co [Member] |  |
Short-term Debt [Line Items] |  |
Capacity | 500 |
Commercial Paper Issuances (c) | 0 | $ 0
Unused Capacity | 500 |
Kentucky Utilities Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate |  | 5.64%
Capacity | 400 |
Commercial Paper Issuances (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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