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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Income (Numerator) [Abstract] |  |
Net income (loss) | $ 273 | $ (1,840)
Net income (loss) available to PPL common shareowners - Basic | 273 | (1,840)
Net income (loss) available to PPL common shareowners - Diluted | $ 273 | $ (1,840)
Shares of Common Stock (Denominator) [Abstract] |  |
Weighted-average shares - Basic EPS (in shares) | 735,503 | 769,159
Add incremental non-participating securities: [Abstract] |  |
Share-based payment awards (in shares) | 681 | 1,551
Weighted-average shares - Diluted EPS (in shares) | 736,184 | 770,710
Shares Issued (Numeric) [Abstract] |  |
Common stock issued under stock-based compensation plans (in shares) | 124 | 520
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Income from continuing operations after income taxes available to PPL common shareowners - Basic and Diluted | $ 273 | $ 203
Income (loss) from discontinued operations (net of income taxes) available to PPL common shareowners - Basic and Diluted | $ 0 | $ (2,043)
Loss from Discontinued Operations (net of income taxes) | $ 0 | $ (2.65)
Income from Continuing Operations after income taxes | $ 0.37 | $ 0.26
Stock Options [Member] |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Shares excluded from the computations of diluted EPS | 154 | 233

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