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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Short-term Debt [Line Items] |  |
Capacity | $ 3,150 |
Commercial Paper Issuances (c) | 780 | $ 303
Unused Capacity | $ 2,370 |
PPL Capital Funding [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.71% | 4.76%
Capacity | $ 1,350 |
Commercial Paper Issuances (c) | 427 | $ 138
Unused Capacity | $ 923 |
PPL Electric [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.68% |
Capacity | $ 650 |
Commercial Paper Issuances (c) | 55 | $ 0
Unused Capacity | $ 595 |
LGE [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.67% | 4.72%
Capacity | $ 500 |
Commercial Paper Issuances (c) | 89 | $ 25
Unused Capacity | $ 411 |
KU [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.71% | 4.71%
Capacity | $ 400 |
Commercial Paper Issuances (c) | 209 | $ 140
Unused Capacity | 191 |
Rhode Island Energy |  |
Short-term Debt [Line Items] |  |
Capacity | 250 |
Commercial Paper Issuances (c) | 0 | 0
Unused Capacity | $ 250 |
PPL Electric Utilities Corp [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.68% |
Capacity | $ 650 |
Commercial Paper Issuances (c) | 55 | $ 0
Unused Capacity | $ 595 |
Louisville Gas And Electric Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.67% | 4.72%
Capacity | $ 500 |
Commercial Paper Issuances (c) | 89 | $ 25
Unused Capacity | $ 411 |
Kentucky Utilities Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 4.71% | 4.71%
Capacity | $ 400 |
Commercial Paper Issuances (c) | 209 | $ 140
Unused Capacity | $ 191 |

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