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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Short-term Debt [Line Items] |  |
Capacity | $ 3,300 |
Commercial Paper Issuances (c) | 291 | $ 993
Unused Capacity | $ 3,009 |
PPL Capital Funding [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 5.51% | 5.66%
Capacity | $ 1,350 |
Commercial Paper Issuances (c) | 218 | $ 365
Unused Capacity | 1,132 |
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] |  |
Weighted - Average Interest Rate | 5.49% |
Capacity | $ 500 |
Commercial Paper Issuances (c) | 28 | $ 0
Unused Capacity | $ 472 |
KU [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 5.49% | 5.64%
Capacity | $ 400 |
Commercial Paper Issuances (c) | 45 | $ 93
Unused Capacity | 355 |
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] |  |
Weighted - Average Interest Rate | 5.49% |
Capacity | $ 500 |
Commercial Paper Issuances (c) | 28 | $ 0
Unused Capacity | $ 472 |
Kentucky Utilities Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 5.49% | 5.64%
Capacity | $ 400 |
Commercial Paper Issuances (c) | 45 | $ 93
Unused Capacity | $ 355 |

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