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Other Income (Expense) - net (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Other Income |  |
Economic foreign currency exchange contracts | $ 62 | $ (33)
Defined benefit plans - non-service credits | 68 | 80
Interest Income | 1 | 6
AFUDC - equity component | 3 | 5
Miscellaneous | 1 | 6
Total Other Income | 135 | 64
Other Expense |  |
Charitable Contributions | 1 | 2
Miscellaneous | 9 | 10
Total Other Expense | 10 | 12
Other Income (Expense) - net | 125 | 52
PPL Electric Utilities Corp [Member] |  |
Other Expense |  |
Other Income (Expense) - net | $ 3 | $ 5

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