CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Millions		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Revenues
Operating Revenues		$ 7,447	$ 7,517	$ 7,669
Operation
Fuel		759	791	863
Energy purchases		685	706	855
Other operation and maintenance		1,635	1,745	1,938
Depreciation		1,008	926	883
Taxes, other than income		292	301	299
Total Operating Expenses		4,379	4,469	4,838
Operating Income		3,068	3,048	2,831
Other Income (Expense) - net		(255)	390	108
Interest Expense		901	888	871
Income Before Income Taxes		1,912	2,550	2,068
Income Taxes		784	648	465
Income from continuing operations (net of income taxes)		1,128	1,902	1,603
Loss from Discontinued Operations (net of income taxes)		0	0	(921)
Net income		$ 1,128	$ 1,902	$ 682
Income from Continuing Operations After Income Taxes Available to PPL Common Shareholders
Basic (in dollars per share)		$ 1.64	$ 2.80	$ 2.38
Diluted (in dollars per share)		1.64	2.79	2.37
Net Income Available to PPL Common Shareowners
Basic (in dollars per share)		1.64	2.80	1.01
Diluted (in dollars per share)		1.64	2.79	1.01
Dividends Declared Per Share of Common Stock		$ 1.58	$ 1.52	$ 1.50
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic		685,240	677,592	669,814
Diluted		687,334	680,446	672,586
PPL Electric Utilities Corp [Member]
Operating Revenues
Operating Revenues		$ 2,195	$ 2,156	$ 2,124
Operation
Energy purchases		507	535	657
Energy purchases from affiliate		0	0	14
Other operation and maintenance		571	599	607
Depreciation		309	253	214
Taxes, other than income		107	105	94
Total Operating Expenses		1,494	1,492	1,586
Operating Income		701	664	538
Other Income (Expense) - net		11	17	8
Interest Income from Affiliate		5	0	0
Interest Expense		142	129	130
Income Before Income Taxes		575	552	416
Income Taxes		213	212	164
Net income	[1]	362	340	252
LG And E And KU Energy LLC [Member]
Operating Revenues
Operating Revenues		3,156	3,141	3,115
Operation
Fuel		759	791	863
Energy purchases		178	171	184
Other operation and maintenance		806	804	837
Depreciation		439	404	382
Taxes, other than income		65	62	57
Total Operating Expenses		2,247	2,232	2,323
Operating Income		909	909	792
Other Income (Expense) - net		(3)	(9)	(8)
Interest Expense		197	197	178
Interest Expense with Affiliates		18	17	3
Income Before Income Taxes		691	686	603
Income Taxes		375	257	239
Net income		316	429	364
Louisville Gas And Electric Co [Member]
Operating Revenues
Retail and wholesale		1,422	1,406	1,407
Electric revenue from affiliates		31	24	37
Operating Revenues		1,453	1,430	1,444
Operation
Fuel		292	301	329
Energy purchases		160	153	166
Energy purchases from affiliate		10	14	20
Other operation and maintenance		355	355	377
Depreciation		183	170	162
Taxes, other than income		33	32	28
Total Operating Expenses		1,033	1,025	1,082
Operating Income		420	405	362
Other Income (Expense) - net		(5)	(5)	(6)
Interest Expense		71	71	57
Income Before Income Taxes		344	329	299
Income Taxes		131	126	114
Net income	[2]	213	203	185
Kentucky Utilities Co [Member]
Operating Revenues
Retail and wholesale		1,734	1,735	1,708
Electric revenue from affiliates		10	14	20
Operating Revenues		1,744	1,749	1,728
Operation
Fuel		467	490	534
Energy purchases		18	18	18
Energy purchases from affiliate		31	24	37
Other operation and maintenance		424	424	435
Depreciation		255	234	220
Taxes, other than income		32	30	29
Total Operating Expenses		1,227	1,220	1,273
Operating Income		517	529	455
Other Income (Expense) - net		(3)	(5)	1
Interest Expense		96	96	82
Income Before Income Taxes		418	428	374
Income Taxes		159	163	140
Net income	[3]	$ 259	$ 265	$ 234

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income approximates comprehensive income.