CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Millions, except Share data in Thousands		Total	Common Stock		Additional Paid-in Capital	Earnings Reinvested	Accumulated Other Comprehensive Loss	Non-controlling Interests	PPL Energy Supply LLC [Member]	PPL Energy Supply LLC [Member] Members Equity [Member]	PPL Energy Supply LLC [Member] Non-controlling Interests	PPL Electric Utilities Corp [Member]		PPL Electric Utilities Corp [Member] Common Stock		PPL Electric Utilities Corp [Member] Preference Stock	PPL Electric Utilities Corp [Member] Additional Paid-in Capital	PPL Electric Utilities Corp [Member] Earnings Reinvested	LG And E And KU Energy LLC [Member]		Louisville Gas And Electric Co [Member]		Louisville Gas And Electric Co [Member] Common Stock		Louisville Gas And Electric Co [Member] Additional Paid-in Capital	Louisville Gas And Electric Co [Member] Earnings Reinvested	Kentucky Utilities Co [Member]		Kentucky Utilities Co [Member] Common Stock		Kentucky Utilities Co [Member] Additional Paid-in Capital	Kentucky Utilities Co [Member] Earnings Reinvested	Kentucky Utilities Co [Member] Accumulated Other Comprehensive Loss
Balance at beginning of period at Jun. 30, 2011												$ 1,980		$ 364		$ 250	$ 879	$ 487			$ 1,738		$ 424		$ 1,278	$ 36	$ 2,710		$ 308		$ 2,348	$ 55	$ (1)
Balance at beginning of period at Jun. 30, 2011		10,919	6		6,774	4,306	(435)	268
Balance at beginning of period at Jun. 30, 2011																			3,991
Balance at beginning of period - shares at Jun. 30, 2011			577,265	[1]										66,368	[2]								21,294	[3]					37,818	[4]
Balance at beginning of period at Jun. 30, 2011									3,452	3,434	18
Common stock shares issued	[1],[5]		579
Common stock issued	[5]	16			16
Stock-based compensation	[6]	5			5
Net income		449				444		5	170	169	1	32	[7]					32	89	[7]	43	[7]				43	56	[7]				56
Dividends, dividend equivalents and distributions	[8]	(208)				(203)		(5)
Cash dividends declared on preference stock												(4)						(4)
Cash dividends declared on common stock												(24)						(24)			(13)					(13)	(20)					(20)
Distributions to member									(76)	(75)	(1)								(323)
Contributions from member									193	193
Capital contributions from PPL																	56
Other comprehensive income (loss)		(65)					(65)		(55)	(55)																							1
Balance at end of period at Sep. 30, 2011												2,040		364		250	935	491			1,768		424		1,278	66	2,747		308		2,348	91
Balance at end of period at Sep. 30, 2011		11,116	6		6,795	4,547	(500)	268
Balance at end of period at Sep. 30, 2011																			3,757
Balance at end of period - shares at Sep. 30, 2011			577,844	[1]										66,368	[2]								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2011									3,684	3,666	18
Balance at beginning of period at Dec. 31, 2010												1,944		364		250	879	451			1,721		424		1,278	19	2,691		308		2,348	35
Balance at beginning of period at Dec. 31, 2010		8,478	5		4,602	4,082	(479)	268
Balance at beginning of period at Dec. 31, 2010																			4,011
Balance at beginning of period - shares at Dec. 31, 2010			483,391	[1]										66,368	[2]								21,294	[3]					37,818	[4]
Balance at beginning of period at Dec. 31, 2010									4,509	4,491	18
Common stock shares issued	[1],[5]		94,453
Common stock issued	[5]	2,329	1		2,328
Purchase Contracts	[9]	(141)			(141)
Stock-based compensation	[6]	6			6
Net income		1,054				1,041		13	473	472	1	128	[7]					128	217	[7]	102	[7]				102	144	[7]				144
Dividends, dividend equivalents and distributions	[8]	(589)				(576)		(13)
Cash dividends declared on preference stock												(12)						(12)
Cash dividends declared on common stock												(76)						(76)			(55)					(55)	(88)					(88)
Distributions to member									(210)	(209)	(1)								(469)
Distribution of membership interest in PPL Global	[10]								1,288	1,288
Contributions from member									361	361
Capital contributions from PPL												56					56
Other comprehensive income (loss)		(21)					(21)		(161)	(161)									(2)
Balance at end of period at Sep. 30, 2011												2,040		364		250	935	491			1,768		424		1,278	66	2,747		308		2,348	91
Balance at end of period at Sep. 30, 2011		11,116	6		6,795	4,547	(500)	268
Balance at end of period at Sep. 30, 2011																			3,757
Balance at end of period - shares at Sep. 30, 2011			577,844	[1]										66,368	[2]								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2011									3,684	3,666	18
Balance at beginning of period at Dec. 31, 2011		10,828										2,125		364		250	979	532			1,762		424		1,278	60	2,745		308		2,348	89
Balance at beginning of period at Dec. 31, 2011		11,096	6		6,813	4,797	(788)	268
Balance at beginning of period at Dec. 31, 2011									4,019										3,741
Balance at beginning of period - shares at Dec. 31, 2011		578,405	578,405	[1]								66,368		66,368	[2]						21,294		21,294	[3]			37,818
Balance at beginning of period at Dec. 31, 2011									4,037	4,019	18
Common stock shares issued	[1],[5]		2,565
Common stock issued	[5]	71			71
Stock-based compensation	[6]	28			28
Net income		1,171				1,167		4	383	382	1	99	[7]					99	180	[7]	94	[7]				94	118	[7]				118
Dividends, dividend equivalents, redemptions and distributions	[8]	(883)				(629)		(254)
Cash dividends declared on preference stock												(4)						(4)
Cash dividends declared on common stock												(75)						(75)			(47)					(47)	(68)					(68)
Distributions to member									(734)	(733)	(1)								(95)
Contributions from member									472	472
Capital contributions from PPL												150					150
Redemption of preferred stock	[11]											(250)				(250)
Other comprehensive income (loss)		(251)					(251)		(257)	(257)									(4)														(4)
Balance at end of period at Sep. 30, 2012		11,214										2,045		364			1,129	552			1,809		424		1,278	107	2,791		308		2,348	139	(4)
Balance at end of period at Sep. 30, 2012		11,232	6		6,912	5,335	(1,039)	18
Balance at end of period at Sep. 30, 2012									3,883										3,822
Balance at end of period - shares at Sep. 30, 2012		580,970										66,368									21,294						37,818
Balance at end of period at Sep. 30, 2012									3,901	3,883	18
Balance at beginning of period at Jun. 30, 2012												1,881		364			979	538			1,782		424		1,278	80	2,761		308		2,348	109	(4)
Balance at beginning of period at Jun. 30, 2012		10,980	6		6,886	5,190	(1,120)	18
Balance at beginning of period at Jun. 30, 2012																			3,774
Balance at beginning of period - shares at Jun. 30, 2012			580,213	[1]										66,368	[2]								21,294	[3]			37,818	[4]
Balance at beginning of period at Jun. 30, 2012									4,000	3,982	18
Common stock shares issued	[1],[5]		757
Common stock issued	[5]	21			21
Stock-based compensation	[6]	5			5
Net income		355				355			55	54	1	33	[7]					33	83	[7]	43	[7]				43	50	[7]				50
Dividends, dividend equivalents, redemptions and distributions	[8]	(210)				(210)
Cash dividends declared on common stock												(19)						(19)			(16)					(16)	(20)					(20)
Distributions to member									(77)	(76)	(1)								(35)
Capital contributions from PPL																	150
Other comprehensive income (loss)		81					81		(77)	(77)
Balance at end of period at Sep. 30, 2012		11,214										2,045		364			1,129	552			1,809		424		1,278	107	2,791		308		2,348	139
Balance at end of period at Sep. 30, 2012		11,232	6		6,912	5,335	(1,039)
Balance at end of period at Sep. 30, 2012									3,883										3,822
Balance at end of period - shares at Sep. 30, 2012		580,970										66,368									21,294						37,818
Balance at end of period at Sep. 30, 2012									$ 3,901	$ 3,883	$ 18

[1] Shares in thousands. Each share entitles the holder to one vote on any question presented at any shareowners' meeting.

[2] Shares in thousands. All common shares of PPL Electric stock are owned by PPL.

[3] Shares in thousands. All common shares of LG&E stock are owned by LKE.

[4] Shares in thousands. All common shares of KU stock are owned by LKE.

[5] Each period includes shares of common stock issued through various stock and incentive compensation plans. The nine months ended September 30, 2011 includes the April issuance of 92 million shares of common stock.

[6] The three and nine months ended September 30, 2012 include $7 million and $42 million and the three and nine months ended September 30, 2011 include $5 million and $27 million of stock-based compensation expense related to new and existing unvested equity awards. The three and nine months ended September 30, 2012 include $(2) million and $(14) million and the nine months ended September 30, 2011 includes $(21) million related primarily to the reclassification from "Stock-based compensation" to "Common stock issued" for the issuance of common stock after applicable equity award vesting periods and tax adjustments related to stock-based compensation.

[7] Net income approximates comprehensive income.

[8] "Earnings reinvested" includes dividends and dividend equivalents on PPL Corporation common stock and restricted stock units. "Noncontrolling interests" includes dividends, redemptions and distributions to noncontrolling interests. In June 2012, PPL Electric redeemed all of its outstanding preference stock at par value, $250 million in the aggregate. See Note 7 for additional information.

[9] The nine months ended September 30, 2011 include $123 million for the 2011 Purchase Contracts and $18 million of related fees and expenses, net of tax.

[10] In January 2011, PPL Energy Supply distributed its entire membership interest in PPL Global to PPL Energy Supply's parent, PPL Energy Funding. The distribution was made based on the book value of the assets and liabilities of PPL Global with financial effect as of January 1, 2011, and no gains or losses were recognized on the distribution.

[11] In June 2012, PPL Electric redeemed all of its outstanding preference stock. See Note 7 for additional information.