CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Revenues
Operating Revenues		$ 7,607	$ 7,769	$ 7,785
Operation
Fuel		632	709	799
Energy purchases		634	723	745
Other operation and maintenance		1,944	1,985	1,983
Depreciation		1,287	1,199	1,094
Taxes, other than income		307	313	312
Total Operating Expenses		4,804	4,929	4,933
Operating Income		2,803	2,840	2,852
Other Income (Expense) - net		169	309	396
Interest Expense		1,001	994	963
Income Before Income Taxes		1,971	2,155	2,285
Income Taxes		502	409	458
Net income		$ 1,469	$ 1,746	$ 1,827
Net Income Available to PPL Common Shareowners
Basic (in dollars per share)		$ 1.91	$ 2.39	$ 2.59
Diluted (in dollars per share)		$ 1.91	$ 2.37	$ 2.58
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic		768,590	728,512	704,439
Diluted		769,384	736,754	708,619
PPL Electric Utilities Corp [Member]
Operating Revenues
Operating Revenues		$ 2,331	$ 2,358	$ 2,277
Operation
Energy purchases		491	549	544
Other operation and maintenance		513	566	578
Depreciation		403	386	352
Taxes, other than income		107	112	109
Total Operating Expenses		1,514	1,613	1,583
Operating Income		817	745	694
Other Income (Expense) - net		18	25	23
Interest Income from Affiliate		2	6	8
Interest Expense		173	170	159
Income Before Income Taxes		664	606	566
Income Taxes		167	149	136
Net income	[1]	497	457	430
LG And E And KU Energy LLC [Member]
Operating Revenues
Operating Revenues		3,106	3,206	3,214
Operation
Fuel		632	709	799
Energy purchases		143	174	201
Other operation and maintenance		834	861	848
Depreciation		606	547	475
Taxes, other than income		77	74	70
Total Operating Expenses		2,292	2,365	2,393
Operating Income		814	841	821
Other Income (Expense) - net		2	(13)	(16)
Interest Expense		223	226	206
Interest Expense with Affiliates		37	31	25
Income Before Income Taxes		556	571	574
Income Taxes		106	103	129
Net income		450	468	445
Louisville Gas And Electric Co [Member]
Operating Revenues
Retail and wholesale		1,435	1,473	1,467
Electric revenue from affiliates		21	27	29
Operating Revenues		1,456	1,500	1,496
Operation
Fuel		246	289	308
Energy purchases		125	154	183
Energy purchases from affiliate		19	7	13
Other operation and maintenance		373	387	376
Depreciation		259	231	195
Taxes, other than income		40	39	36
Total Operating Expenses		1,062	1,107	1,111
Operating Income		394	393	385
Other Income (Expense) - net		(1)	(11)	(12)
Interest Expense		87	87	76
Income Before Income Taxes		306	295	297
Income Taxes		62	63	64
Net income	[2]	244	232	233
Kentucky Utilities Co [Member]
Operating Revenues
Retail and wholesale		1,671	1,733	1,747
Electric revenue from affiliates		19	7	13
Operating Revenues		1,690	1,740	1,760
Operation
Fuel		386	420	491
Energy purchases		18	20	18
Energy purchases from affiliate		21	27	29
Other operation and maintenance		429	438	441
Depreciation		346	315	279
Taxes, other than income		37	35	34
Total Operating Expenses		1,237	1,255	1,292
Operating Income		453	485	468
Other Income (Expense) - net		3	(4)	(6)
Interest Expense		113	109	100
Income Before Income Taxes		343	372	362
Income Taxes		63	79	76
Net income	[3]	$ 280	$ 293	$ 286

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.