Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income (Numerator)
Net income (loss)	$ 756	$ (1,480)	$ 1,469
Less amounts allocated to participating securities	1	0	1
Net Income (Loss) Available to Common Stockholders, Basic	755	(1,480)	1,468
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted	713	18	639
Net income available to PPL common shareowners - Basic	713	18	639
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Diluted	42	(1,498)	829
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	42	(1,498)	829
Net income available to PPL common shareowners - Diluted	$ 755	$ (1,480)	$ 1,468
Shares of Common Stock (Denominator)
Weighted-average shares - Basic EPS (in shares)	736,027	762,902	768,590
Add incremental non-participating securities:
Share-based payment awards (in shares)	875	1,917	794
Weighted-average shares - Diluted EPS (in shares)	736,902	764,819	769,384
Income from Continuing Operations After Income Taxes, Per Basic Share	$ 0.97	$ 0.03	$ 0.83
Basic EPS - Available to PPL common shareowners:
Net Income (Loss)	1.03	(1.93)	1.91
Income from Continuing Operations After Income Taxes, Per Diluted Share	0.96	0.03	0.83
Income (Loss) from Discontinued Operations (net of income taxes), Per Diluted Shares	0.06	(1.96)	1.08
Diluted EPS - Available to PPL common shareowners:
Net Income (in dollars per share)	$ 1.02	$ (1.93)	$ 1.91
Shares Issued (Numeric) [Abstract]
Common stock issued under stock-based compensation plans (in shares)	124	983
Income (Loss) from Continuing Operations After Income Taxes	$ 714	$ 18	$ 640
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computations of diluted EPS	93	1,783	452