CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended												2 Months Ended	12 Months Ended		10 Months Ended	2 Months Ended	12 Months Ended		10 Months Ended	2 Months Ended	12 Months Ended		10 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 PPL Energy Supply LLC [Member]	Dec. 31, 2011 PPL Energy Supply LLC [Member]	Dec. 31, 2010 PPL Energy Supply LLC [Member]	Dec. 31, 2012 PPL Electric Utilities Corp [Member]		Dec. 31, 2011 PPL Electric Utilities Corp [Member]		Dec. 31, 2010 PPL Electric Utilities Corp [Member]		Dec. 31, 2010 LG And E And KU Energy LLC [Member] Successor [Member]	Dec. 31, 2012 LG And E And KU Energy LLC [Member] Successor [Member]	Dec. 31, 2011 LG And E And KU Energy LLC [Member] Successor [Member]	Oct. 31, 2010 LG And E And KU Energy LLC [Member] Predecessor [Member]	Dec. 31, 2010 Louisville Gas And Electric Co [Member] Successor [Member]	Dec. 31, 2012 Louisville Gas And Electric Co [Member] Successor [Member]	Dec. 31, 2011 Louisville Gas And Electric Co [Member] Successor [Member]	Oct. 31, 2010 Louisville Gas And Electric Co [Member] Predecessor [Member]	Dec. 31, 2010 Kentucky Utilities Co [Member] Successor [Member]	Dec. 31, 2012 Kentucky Utilities Co [Member] Successor [Member]	Dec. 31, 2011 Kentucky Utilities Co [Member] Successor [Member]	Oct. 31, 2010 Kentucky Utilities Co [Member] Predecessor [Member]
Operating Revenues
Utility	$ 6,808	$ 6,292	$ 3,668														$ 233	$ 1,247	$ 1,281	$ 978	$ 261	$ 1,512	$ 1,512	$ 1,235
Retail electric							1,760		1,881		2,448
Unregulated retail electric and gas	844	726	415	848	727	415
Wholesale energy marketing
Realized	4,433	3,807	4,832	4,433	3,807	4,832
Unrealized economic activity	(311)	1,407	(805)	(311)	1,407	(805)
Revenue to affiliates				78	26	320	3		11		7						21	77	83	79	2	12	36	13
Net energy trading margins	4	(2)	2	4	(2)	2
Energy-related businesses	508	507	409	448	464	364
Total Operating Revenues	12,286	12,737	8,521	5,500	6,429	5,128	1,763		1,892		2,455		494	2,759	2,793	2,214	254	1,324	1,364	1,057	263	1,524	1,548	1,248
Operation
Fuel	1,837	1,946	1,235	965	1,080	1,096							138	872	866	723	60	374	350	306	78	498	516	417
Energy purchases - realized	2,997	2,130	2,773	2,260	1,160	1,636	550		738		1,075		68	195	238	211	61	163	209	142	7	32	29	68
Energy purchases - unrealized economic activity	(442)	1,123	(286)	(442)	1,123	(286)
Energy purchases from affiliates				3	3	3	78		26		320						2	12	36	13	21	77	83	79
Other operation and maintenance	2,835	2,667	1,756	1,041	929	979	576		530		502		141	778	751	586	67	363	363	281	65	384	362	271
Depreciation	1,100	960	556	285	244	236	160		146		136		49	346	334	235	23	152	147	115	26	193	186	119
Taxes, other than income	366	326	238	69	71	46	105		104		138		2	46	37	21	1	23	18	12	1	23	19	9
Energy-related businesses	484	484	383	432	458	357
Total Operating Expenses	9,177	9,636	6,655	4,613	5,068	4,067	1,469		1,544		2,171		398	2,237	2,226	1,776	214	1,087	1,123	869	198	1,207	1,195	963
Operating Income	3,109	3,101	1,866	887	1,361	1,061	294		348		284		96	522	567	438	40	237	241	188	65	317	353	285
Other Income (Expense) - net	(39)	4	(31)	18	23	22	9		7		7		(2)	(15)	(1)	14	(3)	(3)	(2)	17		(8)	(1)	1
Other-Than-Temporary Impairments	27	6	3	1	6	3								25								25
Interest Income from Affiliates				2	8	9
Interest Expense	961	898	593	168	174	208	99		98		99		20	150	146	21	7	42	44	16	8	69	70	6
Interest Expense with Affiliates													4	1	1	131	1			22	2			62
Income from Continuing Operations Before Income Taxes	2,082	2,201	1,239	738	1,212	881	204		257		192		70	331	419	300	29	192	195	167	55	215	282	218
Income Taxes	545	691	263	263	445	261	68		68		57		25	106	153	109	10	69	71	58	20	78	104	78
Income from Continuing Operations After Income Taxes	1,537	1,510	976	475	767	620							45	225	266	191
Income (Loss) from Discontinued Operations (net of income taxes)	(6)	2	(17)		2	242							2	(6)	(1)	(1)
Net Income	1,531	1,512	959	475	769	862	136	[1]	189	[1]	135	[1]	47	219	265	190	19	123	124	109	35	137	178	140
Net Income Attributable to Noncontrolling Interests	5	17	21	1	1	1
Net Income Attributable to Shareowners	1,526	1,495	938	474	768	861
Distributions on Preferred Securities							4		16		20
Net Income Available to PPL							132		173		115
Amounts Attributable to Shareowners:
Income from Continuing Operations After Income Taxes	1,532	1,493	955	474	766	619
Income (Loss) from Discontinued Operations (net of income taxes)	(6)	2	(17)		2	242
Net Income	$ 1,526	$ 1,495	$ 938	$ 474	$ 768	$ 861
Income from Continuing Operations After Income Taxes Available to PPL Common Shareowners:
Basic (in dollars per share)	$ 2.62	$ 2.70	$ 2.21
Diluted (in dollars per share)	$ 2.61	$ 2.70	$ 2.20
Net Income Available to PPL Common Shareowners:
Basic (in dollars per share)	$ 2.61	$ 2.71	$ 2.17
Diluted (in dollars per share)	$ 2.60	$ 2.70	$ 2.17
Dividends Declared Per Share of Common Stock	$ 1.44	$ 1.40	$ 1.40
Weighted-Average Shares of Common Stock Outstanding (in thousands)
Basic	580,276	550,395	431,345
Diluted	581,626	550,952	431,569

[1] Net income approximates comprehensive income.