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, 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 (loss)		355				355			55	54		1		33	[7]					33	83	[7]	43	[8]				43	50	[8]				50
Dividends, dividend equivalents, redemptions and distributions	[9]	(210)				(210)
Cash dividends declared on common stock														(19)						(19)			(16)					(16)	(20)					(20)
Distributions to member									(77)	(76)		(1)									(35)
Capital Contributions From Parent														150
Other comprehensive income (loss)		81					81		(77)	(77)
Balance at end of period at Sep. 30, 2012														2,045		364				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																					3,822
Balance at end of period - shares at Sep. 30, 2012			580,970	[1]												66,368	[2]								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2012									3,901	3,883		18
Balance at beginning of period at Dec. 31, 2011														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																					3,741
Balance at beginning of period - shares at Dec. 31, 2011			578,405	[1]												66,368	[2]								21,294	[3]					37,818	[4]
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 (loss)		1,171				1,167		4	383	382		1		99	[7]					99	180	[7]	94	[8]				94	118	[8]				118
Dividends, dividend equivalents, redemptions and distributions	[9]	(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 Parent														150					150
Redemption of preferred stock	[10]													(250)				(250)
Other comprehensive income (loss)		(251)					(251)		(257)	(257)											(4)								(4)						(4)
Balance at end of period at Sep. 30, 2012														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																					3,822
Balance at end of period - shares at Sep. 30, 2012			580,970	[1]												66,368	[2]								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2012									3,901	3,883		18
Balance at beginning of period at Dec. 31, 2012		10,480												2,062		364			1,135	563			1,810		424		1,278	108	2,783		308		2,348	126	1
Balance at beginning of period at Dec. 31, 2012		10,498	6		6,936	5,478	(1,940)	18
Balance at beginning of period at Dec. 31, 2012									3,830												3,786
Balance at beginning of period - shares at Dec. 31, 2012		581,944	581,944	[1]										66,368		66,368	[2]						21,294		21,294	[3]			37,818
Balance at beginning of period at Dec. 31, 2012									3,848	3,830	[11]	18	[11]
Common stock shares issued	[1],[5]		50,725
Common stock issued	[5]	1,433			1,433
Common stock shares repurchased		2,400	2,430	[12]
Common stock repurchased	[12]	74			74
Cash settlement of equity forward agreements	[12]	(13)			(13)
Stock-based compensation	[6]	23			23
Net income (loss)		1,229				1,228		1	173	172		1		160	[7]					160	260	[7]	122	[8]				122	171	[8]				171
Dividends, dividend equivalents, redemptions and distributions	[9]	(667)				(666)		(1)
Cash dividends declared on common stock														(94)						(94)			(67)					(67)	(83)					(83)
Distributions to member									(409)	(408)		(1)									(116)
Contributions from member									980	980											146
Capital Contributions From Parent														205					205				54				54		92				92
Other comprehensive income (loss)		(67)					(67)		(44)	(44)											(1)
Balance at end of period at Sep. 30, 2013		12,344												2,333		364			1,340	629			1,919		424		1,332	163	2,963		308		2,440	214	1
Balance at end of period at Sep. 30, 2013		12,362	6		8,305	6,040	(2,007)	18
Balance at end of period at Sep. 30, 2013									4,530												4,075
Balance at end of period - shares at Sep. 30, 2013		630,239												66,368									21,294						37,818
Balance at end of period at Sep. 30, 2013									4,548	4,530	[11]	18	[11]
Balance at beginning of period at Jun. 30, 2013														2,310		364			1,340	606			1,889		424		1,332	133	2,928		308		2,440	179	1
Balance at beginning of period at Jun. 30, 2013		10,954	6		7,195	5,863	(2,128)	18
Balance at beginning of period at Jun. 30, 2013																					4,022
Balance at beginning of period - shares at Jun. 30, 2013			591,622	[1]																					21,294	[3]			37,818	[4]
Balance at beginning of period at Jun. 30, 2013	[11]								3,559	3,541		18
Common stock shares issued	[1],[5]		40,117
Common stock issued	[5]	1,151			1,151
Common stock shares repurchased	[12]		1,500
Common stock repurchased	[12]	46			46
Stock-based compensation	[6]	5			5
Net income (loss)		411				410		1	125	124		1		51	[7]					51	100	[7]	49	[8]				49	63	[8]				63
Dividends, dividend equivalents, redemptions and distributions	[9]	(234)				(233)		(1)
Cash dividends declared on common stock														(28)						(28)			(19)					(19)	(28)					(28)
Distributions to member									(1)			(1)									(47)
Contributions from member									875	875
Capital Contributions From Parent
Other comprehensive income (loss)		121					121		(10)	(10)
Balance at end of period at Sep. 30, 2013		12,344												2,333		364			1,340	629			1,919		424		1,332	163	2,963		308		2,440	214	1
Balance at end of period at Sep. 30, 2013		12,362	6		8,305	6,040	(2,007)	18
Balance at end of period at Sep. 30, 2013									4,530												4,075
Balance at end of period - shares at Sep. 30, 2013		630,239												66,368									21,294						37,818
Balance at end of period at Sep. 30, 2013									$ 4,548	$ 4,530	[11]	$ 18	[11]

[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 2013 periods include the April and July issuances of shares of common stock. See Note 7 for additional information.

[6] The three and nine months ended September 30, 2013 include $8 million and $44 million and the three and nine months ended September 30, 2012 include $7 million and $42 million of stock-based compensation expense related to new and existing unvested equity awards. The three and nine months ended September 30, 2013 include $(3) million and $(21) million and the three and nine months ended September 30, 2012 include $(2) million and $(14) 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] Net income equals comprehensive income.

[9] "Earnings reinvested" includes dividends and dividend equivalents on PPL 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, which was classified as noncontrolling interest.

[10] In June 2012, PPL Electric redeemed all of its outstanding preference stock.

[11] See Note 18 for disclosure of balances of each component of AOCI.

[12] See Note 7 for additional information.