CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Revenues
Operating Revenues		$ 7,785	$ 7,447	$ 7,517
Operation
Fuel		799	759	791
Energy purchases		745	685	706
Other operation and maintenance		1,983	1,802	1,857
Depreciation		1,094	1,008	926
Taxes, other than income		312	292	301
Total Operating Expenses		4,933	4,546	4,581
Operating Income		2,852	2,901	2,936
Other Income (Expense) - net		396	(88)	502
Interest Expense		963	901	888
Income Before Income Taxes		2,285	1,912	2,550
Income Taxes		458	784	648
Net income		$ 1,827	$ 1,128	$ 1,902
Net Income Available to PPL Common Shareowners
Basic (in dollars per share)		$ 2.59	$ 1.64	$ 2.80
Diluted (in dollars per share)		$ 2.58	$ 1.64	$ 2.79
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic		704,439	685,240	677,592
Diluted		708,619	687,334	680,446
PPL Electric Utilities Corp [Member]
Operating Revenues
Operating Revenues		$ 2,277	$ 2,195	$ 2,156
Operation
Energy purchases		544	507	535
Other operation and maintenance		578	572	602
Depreciation		352	309	253
Taxes, other than income		109	107	105
Total Operating Expenses		1,583	1,495	1,495
Operating Income		694	700	661
Other Income (Expense) - net		23	12	20
Interest Income from Affiliate		8	5	0
Interest Expense		159	142	129
Income Before Income Taxes		566	575	552
Income Taxes		136	213	212
Net income	[1]	430	362	340
LG And E And KU Energy LLC [Member]
Operating Revenues
Operating Revenues		3,214	3,156	3,141
Operation
Fuel		799	759	791
Energy purchases		201	178	171
Other operation and maintenance		848	801	798
Depreciation		475	439	404
Taxes, other than income		70	65	62
Total Operating Expenses		2,393	2,242	2,226
Operating Income		821	914	915
Other Income (Expense) - net		(16)	(8)	(15)
Interest Expense		206	197	197
Interest Expense with Affiliates		25	18	17
Income Before Income Taxes		574	691	686
Income Taxes		129	375	257
Net income		445	316	429
Louisville Gas And Electric Co [Member]
Operating Revenues
Retail and wholesale		1,467	1,422	1,406
Electric revenue from affiliates		29	31	24
Operating Revenues		1,496	1,453	1,430
Operation
Fuel		308	292	301
Energy purchases		183	160	153
Energy purchases from affiliate		13	10	14
Other operation and maintenance		376	350	350
Depreciation		195	183	170
Taxes, other than income		36	33	32
Total Operating Expenses		1,111	1,028	1,020
Operating Income		385	425	410
Other Income (Expense) - net		(12)	(10)	(10)
Interest Expense		76	71	71
Income Before Income Taxes		297	344	329
Income Taxes		64	131	126
Net income	[2]	233	213	203
Kentucky Utilities Co [Member]
Operating Revenues
Retail and wholesale		1,747	1,734	1,735
Electric revenue from affiliates		13	10	14
Operating Revenues		1,760	1,744	1,749
Operation
Fuel		491	467	490
Energy purchases		18	18	18
Energy purchases from affiliate		29	31	24
Other operation and maintenance		441	423	422
Depreciation		279	255	234
Taxes, other than income		34	32	30
Total Operating Expenses		1,292	1,226	1,218
Operating Income		468	518	531
Other Income (Expense) - net		(6)	(4)	(7)
Interest Expense		100	96	96
Income Before Income Taxes		362	418	428
Income Taxes		76	159	163
Net income	[3]	$ 286	$ 259	$ 265

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income approximates comprehensive income.