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Other Income (Expense) - net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Other Income |  |  |  |
Defined benefit plans - non-service credits | $ 9 | $ 13 | $ 32 | $ 30
AFUDC - equity component | 13 | 7 | 33 | 21
Miscellaneous | 0 | (7) | 0 | (19)
Other Expense |  |  |  |
Charitable Contributions | 0 | (1) | (4) | (3)
Other Income (Expense) - net | 32 | 16 | 86 | 51
Interest Income (Expense), Nonoperating, Net | 10 | 4 | 25 | 22
PPL Electric Utilities Corp [Member] |  |  |  |
Other Income |  |  |  |
Defined benefit plans - non-service credits | 4 | 5 | 13 | 15
AFUDC - equity component | 6 | 4 | 17 | 12
Miscellaneous | 0 | (2) | 1 | (2)
Other Expense |  |  |  |
Charitable Contributions | 0 | 0 | (3) | (2)
Other Income (Expense) - net | 13 | 8 | 33 | 29
Interest Income (Expense), Nonoperating, Net | 3 | 1 | 5 | 6
Louisville Gas And Electric Co [Member] |  |  |  |
Other Income |  |  |  |
Defined benefit plans - non-service credits | 0 | 0 | 3 | 0
AFUDC - equity component | 2 | 1 | 5 | 2
Miscellaneous | 1 | (1) | 0 | 0
Other Expense |  |  |  |
Other Income (Expense) - net | 3 | 0 | 9 | 2
Interest Income (Expense), Nonoperating, Net | 0 | 0 | 1 | 0
Kentucky Utilities Co [Member] |  |  |  |
Other Income |  |  |  |
Defined benefit plans - non-service credits | 2 | 0 | 6 | 4
AFUDC - equity component | 3 | 1 | 6 | 2
Miscellaneous | (1) | 0 | (3) | 0
Other Expense |  |  |  |
Other Income (Expense) - net | 4 | 1 | 10 | 6
Interest Income (Expense), Nonoperating, Net | $ 0 | $ 0 | $ 1 | $ 0

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