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 [Member]	PPL Energy Supply [Member] Member's Equity	PPL Energy Supply [Member] Non-controlling Interests	PPL Electric [Member]	PPL Electric [Member] Common Stock		PPL Electric [Member] Preferred Securities		PPL Electric [Member] Additional Paid-in Capital	PPL Electric [Member] Earnings Reinvested	LKE [Member]	LGE [Member]	LGE [Member] Common Stock		LGE [Member] Additional Paid-in Capital	LGE [Member] Earnings Reinvested	KU [Member]	KU [Member] Common Stock		KU [Member] Additional Paid-in Capital	KU [Member] Earnings Reinvested	KU [Member] Accumulated Other Comprehensive Loss
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												1,944	364		250		879	451		1,721	424		1,278	19	2,691	308		2,348	35	0
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																			4,011
Balance at beginning of period at Dec. 31, 2010									4,509	4,491	18
Common stock shares issued	[1],[5]		1,227
Common stock issued	[5]	40			40
Stock-based compensation	[6]	(5)			(5)
Net income		405				401		4	214	214		56						56	87	39				39	58				58
Dividends, dividend equivalents and distributions	[7]	(175)				(171)		(4)
Cash dividends declared on preferred securities												(4)						(4)
Cash dividends declared on common stock												(18)						(18)		(17)				(17)	(31)				(31)
Distributions									(81)	(81)
Distributions to member																			(54)
Distribution of membership interest in PPL Global	[8]								(1,288)	(1,288)
Other comprehensive income (loss)		55					55		(20)	(20)									(2)						(1)					(1)
Balance at end of period at Mar. 31, 2011		8,798	5		4,637	4,312	(424)	268
Balance at end of period at Mar. 31, 2011												1,978	364		250		879	485		1,743	424		1,278	41	2,717	308		2,348	62	(1)
Balance at end of period - shares at Mar. 31, 2011			484,618	[1]									66,368	[2]							21,294	[3]				37,818	[4]
Balance at end of period at Mar. 31, 2011																			4,042
Balance at end of period at Mar. 31, 2011									3,334	3,316	18
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		10,828										2,125	364		250		979	532		1,762	424		1,278	60	2,745	308		2,348	89	0
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	37,818	[4]
Balance at beginning of period at Dec. 31, 2011									4,019										3,741
Balance at beginning of period at Dec. 31, 2011									4,037	4,019	18
Common stock shares issued	[1],[5]		1,115
Common stock issued	[5]	32			32
Stock-based compensation	[6]	17			17
Net income		545				541		4	309	309		37						37	53	25				25	38				38
Dividends, dividend equivalents and distributions	[7]	(213)				(209)		(4)
Cash dividends declared on preferred securities												(4)						(4)
Cash dividends declared on common stock												(35)						(35)		(15)				(15)	(24)				(24)
Distributions									(557)	(557)
Distributions to member																			(25)
Other comprehensive income (loss)		58					58		(58)	(58)									(4)						(4)					(4)
Balance at end of period at Mar. 31, 2012		11,535	6		6,862	5,129	(730)	268
Balance at end of period at Mar. 31, 2012		11,267										2,123	364		250	[9]	979	530		1,772	424		1,278	70	2,755	308		2,348	103	(4)
Balance at end of period - shares at Mar. 31, 2012		579,520	579,520	[1]								66,368	66,368	[2]						21,294	21,294	[3]			37,818	37,818	[4]
Balance at end of period at Mar. 31, 2012									3,713										3,765
Balance at end of period at Mar. 31, 2012									$ 3,731	$ 3,713	$ 18

[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] Each period includes shares of common stock issued through various stock and incentive compensation plans.

[6] The three months ended March 31, 2012 and 2011 include $29 million and $17 million of stock-based compensation expense related to new and existing unvested equity awards. These periods also include the reclassification of $(12) million and $(22) 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] "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.

[8] 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.

[9] In April 2012, PPL Electric gave notice that it had elected to redeem all of its outstanding preference stock on June 18, 2012. See Note 7 for additional information.