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Quarterly Financial Data (Unaudited) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Quarterly Financial Information Disclosure [Line Items] |  |  |  |
Operating Revenues |  | $ 7,607 | $ 7,769 | $ 7,785
Operating income |  | $ 2,803 | $ 2,840 | $ 2,852
Net income (loss) available to PPL common shareowners: [Abstract] |  |  |  |
Basic (in dollars per share) |  | $ 1.91 | $ 2.39 | $ 2.59
Diluted (in dollars per share) |  | 1.91 | 2.37 | 2.58
Dividends declared per share of common stock (in dollars per share) | $ 0.4150 | $ 1.66 | $ 1.65 | $ 1.64
PPL Electric Utilities Corp [Member] |  |  |  |
Quarterly Financial Information Disclosure [Line Items] |  |  |  |
Operating Revenues |  | $ 2,331 | $ 2,358 | $ 2,277
Operating income |  | $ 817 | $ 745 | $ 694

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