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] 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, 2013																		$ 4,022
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 - shares at Jun. 30, 2013			591,622	[1]										66,368	[2]							21,294	[3]					37,818	[4]
Common stock shares issued	[1]		40,117
Common stock issued		1,151			1,151
Common stock shares repurchased			1,500
Common stock repurchased		(46)			(46)
Stock-based compensation		5			5
Net income (loss)		411				410		1	125	124	1	51	[5]				51	100	[5]	49	[6]				49	63	[5]				63
Dividends, dividend equivalents, redemptions and distributions		(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
Other comprehensive income (loss)		121					121		(10)	(10)
Balance at end of period at Sep. 30, 2013												2,333		364			629			1,919		424			163	2,963		308			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																		4,075
Balance at end of period - shares at Sep. 30, 2013			630,239	[1]										66,368								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2013									4,548	4,530	18
Balance at beginning of period at Dec. 31, 2012												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																		3,786
Balance at beginning of period - shares at Dec. 31, 2012			581,944	[1]										66,368	[2]							21,294	[3]					37,818	[4]
Balance at beginning of period at Dec. 31, 2012									3,848	3,830	18
Common stock shares issued	[1]		50,725
Common stock issued		1,433			1,433
Common stock shares repurchased			2,430
Common stock repurchased		(74)			(74)
Cash settlement of equity forward agreements		(13)			(13)
Stock-based compensation		23			23
Net income (loss)		1,229				1,228		1	173	172	1	160	[5]				160	260	[5]	122	[6]				122	171	[5]				171
Dividends, dividend equivalents, redemptions and distributions		(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												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																		4,075
Balance at end of period - shares at Sep. 30, 2013			630,239	[1]										66,368								21,294	[3]					37,818	[4]
Balance at end of period at Sep. 30, 2013									4,548	4,530	18
Balance at beginning of period at Dec. 31, 2013		12,466										2,349		364		1,340	645			1,960		424		1,364	172	3,044		308		2,505	230	1
Balance at beginning of period at Dec. 31, 2013			6		8,316	5,709	(1,565)
Balance at beginning of period at Dec. 31, 2013									4,798									4,150
Balance at beginning of period - shares at Dec. 31, 2013		630,321	630,321	[1]								66,368		66,368	[2]					21,294		21,294	[3]			37,818		37,818	[4]
Balance at beginning of period at Dec. 31, 2013										4,798
Common stock shares issued	[1]		34,332
Common stock issued		1,049	1		1,048
Stock-based compensation		24			24
Net income (loss)		1,042				1,042			48	48		194	[5]				194	271	[5]	133	[6]				133	173	[5]				173
Dividends, dividend equivalents, redemptions and distributions		(734)				(734)
Cash dividends declared on common stock												(121)					(121)			(83)					(83)	(112)					(112)
Distributions to member									(1,212)	(1,212)								(327)
Contributions from member									730	730								139
Capital Contributions From Parent												95				95				73				73		66				66
Other comprehensive income (loss)		127					127		1	1								(3)								(1)						(1)
Balance at end of period at Sep. 30, 2014		13,974										2,517		364		1,435	718			2,083		424		1,437	222	3,170		308		2,571	291
Balance at end of period at Sep. 30, 2014			7		9,388	6,017	(1,438)
Balance at end of period at Sep. 30, 2014									4,365									4,230
Balance at end of period - shares at Sep. 30, 2014		664,653										66,368								21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Sep. 30, 2014										4,365
Balance at beginning of period at Jun. 30, 2014												2,494		364		1,435	695			2,040		424		1,417	199	3,140		308		2,571	261
Balance at beginning of period at Jun. 30, 2014		13,735	7		9,358	5,768	(1,398)
Balance at beginning of period at Jun. 30, 2014																		4,225
Balance at beginning of period - shares at Jun. 30, 2014			664,018	[1]										66,368	[2]							21,294	[3]					37,818	[4]
Balance at beginning of period at Jun. 30, 2014									4,569	4,569
Common stock shares issued	[1]		635
Common stock issued		21	0		21
Stock-based compensation		9			9
Net income (loss)		497				497			101	101		57	[5]				57	91	[5]	46	[6]				46	56	[5]				56
Dividends, dividend equivalents, redemptions and distributions		(248)				(248)
Cash dividends declared on common stock												(34)					(34)			(23)					(23)	(26)					(26)
Distributions to member									(298)	(298)								(106)
Contributions from member																		20
Capital Contributions From Parent																				20				20
Other comprehensive income (loss)		(40)					(40)		(7)	(7)
Balance at end of period at Sep. 30, 2014		13,974										2,517		364			718			2,083		424		1,437	222	3,170		308			291
Balance at end of period at Sep. 30, 2014			7		9,388	6,017	(1,438)
Balance at end of period at Sep. 30, 2014									4,365									4,230
Balance at end of period - shares at Sep. 30, 2014		664,653										66,368								21,294		21,294	[3]			37,818		37,818	[4]
Balance at end of period at Sep. 30, 2014										$ 4,365

[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] Net income approximates comprehensive income.

[6] Net income equals comprehensive income.