CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Millions, except Share data in Thousands		Total		PPL Energy Supply [Member]	PPL Electric [Member]	LKE [Member] Successor [Member]	LKE [Member] Predecessor [Member]	LGE [Member]	LGE [Member] Successor [Member]	LGE [Member] Predecessor [Member]	KU [Member]	KU [Member] Successor [Member]	KU [Member] Predecessor [Member]	Common Stock		Common Stock PPL Electric [Member]		Common Stock LGE [Member] Successor [Member]		Common Stock LGE [Member] Predecessor [Member]		Common Stock KU [Member] Successor [Member]		Common Stock KU [Member] Predecessor [Member]		Preferred Securities PPL Electric [Member]	Additional Paid-in Capital		Additional Paid-in Capital PPL Electric [Member]	Additional Paid-in Capital LGE [Member] Successor [Member]	Additional Paid-in Capital LGE [Member] Predecessor [Member]	Additional Paid-in Capital KU [Member] Successor [Member]	Additional Paid-in Capital KU [Member] Predecessor [Member]	Earnings Reinvested	Earnings Reinvested PPL Electric [Member]		Earnings Reinvested LGE [Member] Successor [Member]	Earnings Reinvested LGE [Member] Predecessor [Member]	Earnings Reinvested KU [Member] Successor [Member]		Earnings Reinvested KU [Member] Predecessor [Member]		Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss LGE [Member] Predecessor [Member]	Accumulated Other Comprehensive Loss KU [Member] Successor [Member]	Accumulated Other Comprehensive Loss KU [Member] Predecessor [Member]	Member's Equity PPL Energy Supply [Member]	Member's Equity LKE [Member] Successor [Member]	Member's Equity LKE [Member] Predecessor [Member]	Non-controlling Interests	Non-controlling Interests PPL Energy Supply [Member]	Non-controlling Interests LKE [Member] Successor [Member]	Non-controlling Interests LKE [Member] Predecessor [Member]
Balance at beginning of period at Jun. 30, 2010		$ 8,205			$ 1,913					$ 1,267			$ 2,027	$ 5		$ 364				$ 424				$ 308		$ 250	$ 4,553		$ 879		$ 84		$ 316	$ 3,818	$ 420			$ 772			$ 1,403		$ (439)	$ (13)		$ 0				$ 268
Balance at beginning of period - shares at Jun. 30, 2010														482,188	[1]	66,368	[2]			21,294	[3]			37,818	[4]
Balance at beginning of period at Jun. 30, 2010				8,186			2,241																																								8,168		2,241		18		0
Common stock issued		16	[5]											0													16	[5]
Common stock shares issued	[1][5]													625
Purchase Contracts	[6]	10																									10
Stock-based compensation		3																									3
Net income		253		266	40		102			60			54																					248	40	[7]		60			54	[8]					265		102	5	1
Dividends, dividend equivalents, redemptions and distributions	[9]	(174)																																(169)																(5)
Cash dividends declared on preferred securities					(4)																														(4)
Cash dividends declared on common stock					(9)					(25)			(50)																						(9)			(25)			(50)
Distributions				(149)																																											(148)				(1)
Distributions to member							(25)																																										(25)
Capital contributions from PPL					0																								0
Disposal of discontinued operations							1																																										1
Other comprehensive income (loss)		279		332			9			13			(2)																														279	13		(2)	332		9
Balance at end of period at Sep. 30, 2010		8,592			1,940					1,315			2,029	5		364				424				308			4,582		879		84		316	3,897	447			807			1,407		(160)	0		(2)				268
Balance at end of period - shares at Sep. 30, 2010														482,813	[1]	66,368	[2]			21,294	[3]			37,818	[4]
Balance at end of period at Sep. 30, 2010				8,635			2,328																																								8,617		2,328		18
Balance at beginning of period at Dec. 31, 2009		5,815			1,896					1,253			1,952	4		364				424				308		301	2,280		824		84		316	3,749	407			755			1,328		(537)	(10)		0				319
Balance at beginning of period - shares at Dec. 31, 2009														377,183	[1]	66,368	[2]			21,294	[3]			37,818	[4]
Balance at beginning of period at Dec. 31, 2009				4,586			2,224																																								4,568		2,192		18		32
Common stock issued	[5]	2,475												1													2,474
Common stock shares issued	[1][5]													105,630
Purchase Contracts	[6]	(176)																									(176)
Stock-based compensation		4																									4
Net income		600		552	105		194			107			129																					583	105	[7]		107			129	[8]					551		194	17	1
Dividends, dividend equivalents, redemptions and distributions	[9]	(503)																																(435)																(68)
Cash dividends declared on preferred securities					(13)																														(13)
Cash dividends declared on common stock					(49)					(55)			(50)																						(49)			(55)			(50)
Distributions				(513)																																											(512)				(1)
Distributions to member							(56)																																										(56)
Contributions from member				3,525																																											3,525
Capital contributions from PPL					55																								55
Redemption of preferred stock	[10]				(54)																					(51)									(3)
Disposal of discontinued operations							(42)																																										(10)				(32)
Other comprehensive income (loss)		377		485			8			10			(2)																														377	10		(2)	485		8
Balance at end of period at Sep. 30, 2010		8,592			1,940					1,315			2,029	5		364				424				308		250	4,582		879		84		316	3,897	447			807			1,407		(160)	0		(2)				268
Balance at end of period - shares at Sep. 30, 2010														482,813	[1]	66,368	[2]			21,294	[3]			37,818	[4]
Balance at end of period at Sep. 30, 2010				8,635			2,328																																								8,617		2,328		18		0
Balance at beginning of period at Dec. 31, 2010		8,210
Balance at beginning of period at Dec. 31, 2010		8,478			1,944			1,721			2,691			5		364		424				308				250	4,602		879	1,278		2,348		4,082	451		19		35				(479)							268
Balance at beginning of period - shares at Dec. 31, 2010		483,391			66,368			21,294			37,818			483,391	[1]	66,368	[2]	21,294	[3]			37,818	[4]
Balance at beginning of period at Dec. 31, 2010				4,509		4,011																																									4,491	4,011			18	0
Common stock issued	[5]	2,329												1													2,328
Common stock shares issued	[1][5]													94,453
Purchase Contracts	[6]	(141)																									(141)
Stock-based compensation		6																									6
Net income		1,054		473	128	217			102			144																						1,041	128	[7]	102		144	[8]							472	217		13	1
Dividends, dividend equivalents and distributions	[9]	(589)																																(576)																(13)
Cash dividends declared on preferred securities					(12)																														(12)
Cash dividends declared on common stock					(76)				(55)			(88)																							(76)		(55)		(88)
Distributions				(210)																																											(209)				(1)
Distributions to member						(469)																																										(469)
Distribution of membership interest in PPL Global	[11]			(1,288)																																											(1,288)
Contributions from member				361																																											361
Capital contributions from PPL					56																								56
Other comprehensive income (loss)		(21)		(161)		(2)			0																																		(21)				(161)	(2)
Balance at end of period at Sep. 30, 2011		10,848
Balance at end of period at Sep. 30, 2011		11,116			2,040			1,768			2,747			6		364		424				308				250	6,795		935	1,278		2,348		4,547	491		66		91				(500)							268
Balance at end of period - shares at Sep. 30, 2011		577,844			66,368			21,294			37,818			577,844	[1]	66,368	[2]	21,294	[3]			37,818	[4]
Balance at end of period at Sep. 30, 2011				3,684		3,757																																									3,666	3,757			18	0
Balance at beginning of period at Jun. 30, 2011		10,919			1,980				1,738			2,710		6		364		424				308				250	6,774		879	1,278		2,348		4,306	487		36		55				(435)		(1)					268
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		3,991																																									3,434	3,991			18	0
Common stock issued		16	[5]											0													16	[5]
Common stock shares issued	[1][5]													579
Stock-based compensation		5																									5
Net income		449		170	32	89			43			56																						444	32	[7]	43		56	[8]							169	89		5	1
Dividends, dividend equivalents and distributions	[9]	(208)																																(203)																(5)
Cash dividends declared on preferred securities					(4)																														(4)
Cash dividends declared on common stock					(24)				(13)			(20)																							(24)		(13)		(20)
Distributions				(76)																																											(75)				(1)
Distributions to member						(323)																																										(323)
Contributions from member				193																																											193
Capital contributions from PPL					56																								56
Other comprehensive income (loss)		(65)		(55)					0			1																															(65)		1		(55)
Balance at end of period at Sep. 30, 2011		10,848
Balance at end of period at Sep. 30, 2011		11,116			2,040			1,768			2,747			6		364		424				308				250	6,795		935	1,278		2,348		4,547	491		66		91				(500)		0					268
Balance at end of period - shares at Sep. 30, 2011		577,844			66,368			21,294			37,818			577,844	[1]	66,368	[2]	21,294	[3]			37,818	[4]
Balance at end of period at Sep. 30, 2011				$ 3,684		$ 3,757																																									$ 3,666	$ 3,757			$ 18	$ 0

[1] Shares in thousands. Each share entitles the holder to one vote on any question presented to 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] The nine months ended September 30, 2011 includes the April issuance of 92 million shares of common stock. See Note 7 for additional information. The nine months ended September 30, 2010 includes the June issuance of 103.5 million shares of common stock. The 2011 and 2010 periods include shares of common stock issued through various stock and incentive compensation plans.

[6] 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. See Note 7 for additional information. The three months ended September 30, 2010 includes the recording of a deferred tax benefit for the issuance costs related to the 2010 Purchase Contracts. The nine months ended September 30, 2010 include $157 million for the 2010 Purchase Contracts and $19 million of related fees and expenses, net of tax.

[7] PPL Electric's net income approximates comprehensive income.

[8] KU's net income approximates comprehensive income.

[9] "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, for which the nine months ended September 30, 2010 includes $54 million paid to redeem PPL Electric's preferred stock.

[10] In April 2010, PPL Electric redeemed all five series of its outstanding preferred stock.

[11] See Note 8 for additional information.