Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2015

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(PPL, LKE, LG&E and KU)
The changes in the carrying amounts of AROs were as follows.
		PPL		LKE		LG&E		KU
Balance at December 31, 2014		$	336	$	285	$	74	$	211
	Accretion		8		7		2		5
	Changes in estimated cash flow or settlement date		163		163		46		117
	Effect of foreign currency exchange rates		(2)
	Obligations settled		(2)		(2)		(2)
Balance at June 30, 2015		$	503	$	453	$	120	$	333

LG And E And KU Energy LLC [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(PPL, LKE, LG&E and KU)
The changes in the carrying amounts of AROs were as follows.
		PPL		LKE		LG&E		KU
Balance at December 31, 2014		$	336	$	285	$	74	$	211
	Accretion		8		7		2		5
	Changes in estimated cash flow or settlement date		163		163		46		117
	Effect of foreign currency exchange rates		(2)
	Obligations settled		(2)		(2)		(2)
Balance at June 30, 2015		$	503	$	453	$	120	$	333

Louisville Gas And Electric Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(PPL, LKE, LG&E and KU)
The changes in the carrying amounts of AROs were as follows.
		PPL		LKE		LG&E		KU
Balance at December 31, 2014		$	336	$	285	$	74	$	211
	Accretion		8		7		2		5
	Changes in estimated cash flow or settlement date		163		163		46		117
	Effect of foreign currency exchange rates		(2)
	Obligations settled		(2)		(2)		(2)
Balance at June 30, 2015		$	503	$	453	$	120	$	333

Kentucky Utilities Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(PPL, LKE, LG&E and KU)
The changes in the carrying amounts of AROs were as follows.
		PPL		LKE		LG&E		KU
Balance at December 31, 2014		$	336	$	285	$	74	$	211
	Accretion		8		7		2		5
	Changes in estimated cash flow or settlement date		163		163		46		117
	Effect of foreign currency exchange rates		(2)
	Obligations settled		(2)		(2)		(2)
Balance at June 30, 2015		$	503	$	453	$	120	$	333