CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Revenues
Operating Revenues		$ 7,769	$ 7,785	$ 7,447
Operation
Fuel		709	799	759
Energy purchases		723	745	685
Other operation and maintenance		1,985	1,983	1,802
Depreciation		1,199	1,094	1,008
Taxes, other than income		313	312	292
Total Operating Expenses		4,929	4,933	4,546
Operating Income		2,840	2,852	2,901
Other Income (Expense) - net		309	396	(88)
Interest Expense		994	963	901
Income Before Income Taxes		2,155	2,285	1,912
Income Taxes		409	458	784
Net income		$ 1,746	$ 1,827	$ 1,128
Net Income Available to PPL Common Shareowners
Basic (in dollars per share)		$ 2.39	$ 2.59	$ 1.64
Diluted (in dollars per share)		$ 2.37	$ 2.58	$ 1.64
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic		728,512	704,439	685,240
Diluted		736,754	708,619	687,334
PPL Electric Utilities Corp [Member]
Operating Revenues
Operating Revenues		$ 2,358	$ 2,277	$ 2,195
Operation
Energy purchases		549	544	507
Other operation and maintenance		566	578	572
Depreciation		386	352	309
Taxes, other than income		112	109	107
Total Operating Expenses		1,613	1,583	1,495
Operating Income		745	694	700
Other Income (Expense) - net		25	23	12
Interest Income from Affiliate		6	8	5
Interest Expense		170	159	142
Income Before Income Taxes		606	566	575
Income Taxes		149	136	213
Net income	[1]	457	430	362
LG And E And KU Energy LLC [Member]
Operating Revenues
Operating Revenues		3,206	3,214	3,156
Operation
Fuel		709	799	759
Energy purchases		174	201	178
Other operation and maintenance		861	848	801
Depreciation		547	475	439
Taxes, other than income		74	70	65
Total Operating Expenses		2,365	2,393	2,242
Operating Income		841	821	914
Other Income (Expense) - net		(13)	(16)	(8)
Interest Expense		226	206	197
Interest Expense with Affiliates		31	25	18
Income Before Income Taxes		571	574	691
Income Taxes		103	129	375
Net income		468	445	316
Louisville Gas And Electric Co [Member]
Operating Revenues
Retail and wholesale		1,473	1,467	1,422
Electric revenue from affiliates		27	29	31
Operating Revenues		1,500	1,496	1,453
Operation
Fuel		289	308	292
Energy purchases		154	183	160
Energy purchases from affiliate		7	13	10
Other operation and maintenance		387	376	350
Depreciation		231	195	183
Taxes, other than income		39	36	33
Total Operating Expenses		1,107	1,111	1,028
Operating Income		393	385	425
Other Income (Expense) - net		(11)	(12)	(10)
Interest Expense		87	76	71
Income Before Income Taxes		295	297	344
Income Taxes		63	64	131
Net income	[2]	232	233	213
Kentucky Utilities Co [Member]
Operating Revenues
Retail and wholesale		1,733	1,747	1,734
Electric revenue from affiliates		7	13	10
Operating Revenues		1,740	1,760	1,744
Operation
Fuel		420	491	467
Energy purchases		20	18	18
Energy purchases from affiliate		27	29	31
Other operation and maintenance		438	441	423
Depreciation		315	279	255
Taxes, other than income		35	34	32
Total Operating Expenses		1,255	1,292	1,226
Operating Income		485	468	518
Other Income (Expense) - net		(4)	(6)	(4)
Interest Expense		109	100	96
Income Before Income Taxes		372	362	418
Income Taxes		79	76	159
Net income	[3]	$ 293	$ 286	$ 259

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income approximates comprehensive income.