CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Millions, except Share data		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 Mar. 31, 2012														$ 2,123		$ 364		$ 250	$ 979	$ 530			$ 1,772		$ 424		$ 1,278	$ 70	$ 2,755		$ 308		$ 2,348	$ 103	$ (4)
Balance at beginning of period at Mar. 31, 2012		11,535	6		6,862	5,129	(730)	268
Balance at beginning of period at Mar. 31, 2012																					3,765
Balance at beginning of period - shares at Mar. 31, 2012			579,520,000	[1]												66,368,000	[2]								21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Mar. 31, 2012									3,731	3,713		18
Common stock shares issued	[1],[5]		693,000
Common stock issued	[5]	18			18
Stock-based compensation	[6]	6			6
Net income (loss)		271				271			19	19				29	[7]					29	44	[7]	26	[8]				26	30	[7]				30
Dividends, dividend equivalents, redemptions and distributions	[9]	(460)				(210)		(250)
Cash dividends declared on common stock														(21)						(21)			(16)					(16)	(24)					(24)
Distributions to member									(100)	(100)											(35)
Contributions from member									472	472
Redemption of preferred stock	[10]													(250)				(250)
Other comprehensive income (loss)		(390)					(390)		(122)	(122)
Balance at end of period at Jun. 30, 2012														1,881		364			979	538			1,782		424		1,278	80	2,761		308		2,348	109
Balance at end of period at Jun. 30, 2012		10,980	6		6,886	5,190	(1,120)	18
Balance at end of period at Jun. 30, 2012																					3,774
Balance at end of period - shares at Jun. 30, 2012			580,213,000	[1]												66,368,000	[2]								21,294,000	[3]					37,818,000	[4]
Balance at end of period at Jun. 30, 2012									4,000	3,982		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			578,405,000	[1]												66,368,000	[2]								21,294,000	[3]					37,818,000	[4]
Balance at beginning of period at Dec. 31, 2011									4,037	4,019		18
Common stock shares issued	[1],[5]		1,808,000
Common stock issued	[5]	50			50
Purchase Contracts
Stock-based compensation	[6]	23			23
Net income (loss)		816				812		4	328	328				66	[7]					66	97	[7]	51	[8]				51	68	[7]				68
Dividends, dividend equivalents, redemptions and distributions	[9]	(673)				(419)		(254)
Cash dividends declared on preference stock														(4)						(4)
Cash dividends declared on common stock														(56)						(56)			(31)					(31)	(48)					(48)
Distributions to member									(657)	(657)											(60)
Contributions from member									472	472
Capital contributions from parent
Redemption of preferred stock	[10]													(250)				(250)
Other comprehensive income (loss)		(332)					(332)		(180)	(180)											(4)								(4)						(4)
Balance at end 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 end of period at Jun. 30, 2012		10,980	6		6,886	5,190	(1,120)	18
Balance at end of period at Jun. 30, 2012																					3,774
Balance at end of period - shares at Jun. 30, 2012			580,213,000	[1]												66,368,000	[2]								21,294,000	[3]					37,818,000	[4]
Balance at end of period at Jun. 30, 2012									4,000	3,982		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
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		581,944,000	581,944,000	[1]										66,368,000		66,368,000	[2]						21,294,000		21,294,000	[3]			37,818,000
Balance at beginning of period at Dec. 31, 2012									3,848	3,830	[11]	18	[11]
Common stock shares issued	[1],[5]		10,608,000
Common stock issued	[5]	282			282
Common stock shares repurchased		930,000	930,000	[12]
Common stock repurchased	[12]	28			28
Cash settlement of equity forward agreements	[12]	(13)			(13)
Stock-based compensation	[6]	18			18
Net income (loss)		818				818			48	48				109	[7]					109	160	[7]	73	[8]				73	108	[7]				108
Dividends, dividend equivalents, redemptions and distributions	[9]	(433)				(433)
Cash dividends declared on common stock														(66)						(66)			(48)					(48)	(55)					(55)
Distributions to member									(408)	(408)											(69)
Contributions from member									105	105											146
Capital contributions from parent														205					205				54				54		92				92
Other comprehensive income (loss)		(188)					(188)		(34)	(34)											(1)
Balance at end of period at Jun. 30, 2013		10,936												2,310		364			1,340	606			1,889		424		1,332	133	2,928		308		2,440	179	1
Balance at end of period at Jun. 30, 2013		10,954	6		7,195	5,863	(2,128)	18
Balance at end of period at Jun. 30, 2013									3,541												4,022
Balance at end of period - shares at Jun. 30, 2013		591,622,000												66,368,000									21,294,000						37,818,000
Balance at end of period at Jun. 30, 2013									3,559	3,541	[11]	18	[11]
Balance at beginning of period at Mar. 31, 2013														2,161		364			1,195	602			1,860		424		1,303	133	2,884		308		2,398	177	1
Balance at beginning of period at Mar. 31, 2013		10,542	6		6,988	5,676	(2,146)	18
Balance at beginning of period at Mar. 31, 2013																					3,952
Balance at beginning of period - shares at Mar. 31, 2013			583,214,000	[1]																					21,294,000	[3]			37,818,000	[4]
Balance at beginning of period at Mar. 31, 2013	[11]								3,494	3,476		18
Common stock shares issued	[1],[5]		9,338,000
Common stock issued	[5]	245			245
Common stock shares repurchased	[12]		930,000
Common stock repurchased	[12]	28			28
Cash settlement of equity forward agreements	[12]	(13)			(13)
Stock-based compensation	[6]	3			3
Net income (loss)		405				405			86	86				45	[7]					45	64	[7]	29	[8]				29	44	[7]				44
Dividends, dividend equivalents, redemptions and distributions	[9]	(218)				(218)
Cash dividends declared on common stock														(41)						(41)			(29)					(29)	(42)					(42)
Distributions to member									(95)	(95)											(65)
Contributions from member									105	105											71
Capital contributions from parent														145					145				29				29		42				42
Other comprehensive income (loss)		18					18		(31)	(31)
Balance at end of period at Jun. 30, 2013		10,936												2,310		364			1,340	606			1,889		424		1,332	133	2,928		308		2,440	179	1
Balance at end of period at Jun. 30, 2013		10,954	6		7,195	5,863	(2,128)	18
Balance at end of period at Jun. 30, 2013									3,541												4,022
Balance at end of period - shares at Jun. 30, 2013		591,622,000												66,368,000									21,294,000						37,818,000
Balance at end of period at Jun. 30, 2013									$ 3,559	$ 3,541	[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 issuance of shares of common stock. See Note 7 for additional information.

[6] The three and six months ended June 30, 2013 include $8 million and $36 million and the three and six months ended June 30, 2012 include $6 million and $35 million of stock-based compensation expense related to new and existing unvested equity awards. The three and six months ended June 30, 2013 include $(5) million and $(18) million and the six months ended June 30, 2012 includes $(12) 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.