Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income (Numerator)
Net income (loss)	$ 740	$ 756	$ (1,480)
Less amounts allocated to participating securities	1	1	0
Net Income (Loss) Available to Common Stockholders, Basic	739	755	(1,480)
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted	739	713	18
Net income available to PPL common shareowners - Basic	739	713	18
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Diluted	0	42	(1,498)
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	0	42	(1,498)
Net income available to PPL common shareowners - Diluted	$ 739	$ 755	$ (1,480)
Shares of Common Stock (Denominator)
Weighted-average shares - Basic EPS (in shares)	737,036	736,027	762,902
Add incremental non-participating securities:
Share-based payment awards (in shares)	1,130	875	1,917
Weighted-average shares - Diluted EPS (in shares)	738,166	736,902	764,819
Income from Continuing Operations After Income Taxes, Per Basic Share	$ 1.00	$ 0.97	$ 0.03
Basic EPS - Available to PPL common shareowners:
Net Income (Loss)	1.00	1.03	(1.93)
Income from Continuing Operations After Income Taxes, Per Diluted Share	1.00	0.96	0.03
Income (Loss) from Discontinued Operations (net of income taxes), Per Diluted Shares	0	0.06	(1.96)
Diluted EPS - Available to PPL common shareowners:
Net Income (in dollars per share)	$ 1.00	$ 1.02	$ (1.93)
Shares Issued (Numeric) [Abstract]
Common stock issued under stock-based compensation plans (in shares)	0	124
Income (Loss) from Continuing Operations After Income Taxes	$ 740	$ 714	$ 18
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computations of diluted EPS	243	93	1,783