Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income (Numerator) [Abstract]
Net income (loss)	$ 307	$ 285
Less amounts allocated to participating securities	0	1
Net Income (Loss) Available to Common Stockholders, Basic	307	284
Net income (loss) available to PPL common shareowners - Diluted	$ 307	$ 284
Shares of Common Stock (Denominator) [Abstract]
Weighted-average shares - Basic EPS (in shares)	737,512	736,829
Add incremental non-participating securities: [Abstract]
Share-based payment awards (in shares)	1,308	869
Weighted-average shares - Diluted EPS (in shares)	738,820	737,698
Income (Loss) from Continuing Operations after income taxes, Diluted	$ 0.42	$ 0.39
Income (Loss) from Continuing Operations After Income Taxes, Basic	0.42	0.39
Basic EPS - Available to PPL common shareowners: [Abstract]
Net Income Available to PPL common shareowners (in dollars per share)	0.42	0.39
Diluted EPS - Available to PPL common shareowners: [Abstract]
Net Income Available to PPL common shareowners (in dollars per share)	$ 0.42	$ 0.39
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computations of diluted EPS	0	534