CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Revenues
Operating Revenues		$ 5,783	$ 5,474	$ 5,602
Operation
Fuel		710	632	709
Energy purchases		752	634	723
Other operation and maintenance		1,608	1,420	1,509
Depreciation		1,082	1,022	949
Taxes, other than income		207	180	186
Total Operating Expenses		4,359	3,888	4,076
Operating Income		1,424	1,586	1,526
Other Income (Expense) - net		15	2	14
Interest Expense		918	634	621
Income (Loss) from Continuing Operations Before Income Taxes		521	954	919
Income Taxes		503	314	183
Income (Loss) from Continuing Operations After Income Taxes		18	640	736
Income (Loss) from Discontinued Operations (net of income taxes)		(1,498)	829	1,010
Net income (Loss)		$ (1,480)	$ 1,469	$ 1,746
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.03	$ 0.83	$ 1.01
Earnings per Share of Common Stock [Abstract]
Income (Loss) from Discontinued Operation ( net of income taxes)		(1.96)	1.08	1.38
Net Income (Loss) Available to PPL Common Shareowners		(1.93)	1.91	2.39
Income (Loss) from Continuing Operations, Per Diluted Share		0.03	0.83	1.00
Income (Loss) from Discontinued Operation (net of income taxes)		(1.96)	1.08	1.37
Net Income (Loss) Available to PPL Common Shareowners		$ (1.93)	$ 1.91	$ 2.37
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic		762,902	768,590	728,512
Diluted		764,819	769,384	736,754
PPL Electric Utilities Corp [Member]
Operating Revenues
Operating Revenues		$ 2,402	$ 2,331	$ 2,358
Operation
Energy purchases		566	491	549
Other operation and maintenance		557	513	566
Depreciation		424	403	386
Taxes, other than income		120	107	112
Total Operating Expenses		1,667	1,514	1,613
Operating Income		735	817	745
Other Income (Expense) - net		21	18	25
Interest Income from Affiliate		5	2	6
Interest Expense		162	173	170
Income (Loss) from Continuing Operations Before Income Taxes		599	664	606
Income Taxes		154	167	149
Net income (Loss)	[1]	445	497	457
Louisville Gas And Electric Co [Member]
Operating Revenues
Retail and wholesale		1,545	1,435	1,473
Electric revenue from affiliates		24	21	27
Operating Revenues		1,569	1,456	1,500
Operation
Fuel		265	246	289
Energy purchases		167	125	154
Energy purchases from affiliate		23	19	7
Other operation and maintenance		400	373	387
Depreciation		279	259	231
Taxes, other than income		46	40	39
Total Operating Expenses		1,180	1,062	1,107
Operating Income		389	394	393
Other Income (Expense) - net		(5)	(1)	(11)
Interest Expense		81	87	87
Income (Loss) from Continuing Operations Before Income Taxes		303	306	295
Income Taxes		54	62	63
Net income (Loss)	[2]	249	244	232
Kentucky Utilities Co [Member]
Operating Revenues
Retail and wholesale		1,803	1,671	1,733
Electric revenue from affiliates		23	19	7
Operating Revenues		1,826	1,690	1,740
Operation
Fuel		445	386	420
Energy purchases		19	18	20
Energy purchases from affiliate		24	21	27
Other operation and maintenance		463	429	438
Depreciation		366	346	315
Taxes, other than income		41	37	35
Total Operating Expenses		1,358	1,237	1,255
Operating Income		468	453	485
Other Income (Expense) - net		4	3	(4)
Interest Expense		109	113	109
Income (Loss) from Continuing Operations Before Income Taxes		363	343	372
Income Taxes		67	63	79
Net income (Loss)	[3]	$ 296	$ 280	$ 293

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.