Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2014

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(All Registrants except PPL Electric)
The changes in the carrying amounts of AROs were as follows.
				PPL
		PPL		Energy Supply		LKE		LG&E		KU
Balance at December 31, 2013		$	705	$	404	$	252	$	74	$	178
	Accretion expense		34		23		10		3		7
	Obligations incurred		14		13		1				1
	Changes in estimated cash flow or settlement date		11		(12)		23		1		22
	Effect of foreign currency exchange rates		1
	Obligations settled		(8)		(5)		(3)		(3)
Balance at September 30, 2014		$	757	$	423	$	283	$	75	$	208

PPL Energy Supply LLC [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(All Registrants except PPL Electric)
The changes in the carrying amounts of AROs were as follows.
				PPL
		PPL		Energy Supply		LKE		LG&E		KU
Balance at December 31, 2013		$	705	$	404	$	252	$	74	$	178
	Accretion expense		34		23		10		3		7
	Obligations incurred		14		13		1				1
	Changes in estimated cash flow or settlement date		11		(12)		23		1		22
	Effect of foreign currency exchange rates		1
	Obligations settled		(8)		(5)		(3)		(3)
Balance at September 30, 2014		$	757	$	423	$	283	$	75	$	208

LG And E And KU Energy LLC [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(All Registrants except PPL Electric)
The changes in the carrying amounts of AROs were as follows.
				PPL
		PPL		Energy Supply		LKE		LG&E		KU
Balance at December 31, 2013		$	705	$	404	$	252	$	74	$	178
	Accretion expense		34		23		10		3		7
	Obligations incurred		14		13		1				1
	Changes in estimated cash flow or settlement date		11		(12)		23		1		22
	Effect of foreign currency exchange rates		1
	Obligations settled		(8)		(5)		(3)		(3)
Balance at September 30, 2014		$	757	$	423	$	283	$	75	$	208

Louisville Gas And Electric Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(All Registrants except PPL Electric)
The changes in the carrying amounts of AROs were as follows.
				PPL
		PPL		Energy Supply		LKE		LG&E		KU
Balance at December 31, 2013		$	705	$	404	$	252	$	74	$	178
	Accretion expense		34		23		10		3		7
	Obligations incurred		14		13		1				1
	Changes in estimated cash flow or settlement date		11		(12)		23		1		22
	Effect of foreign currency exchange rates		1
	Obligations settled		(8)		(5)		(3)		(3)
Balance at September 30, 2014		$	757	$	423	$	283	$	75	$	208

Kentucky Utilities Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(All Registrants except PPL Electric)
The changes in the carrying amounts of AROs were as follows.
				PPL
		PPL		Energy Supply		LKE		LG&E		KU
Balance at December 31, 2013		$	705	$	404	$	252	$	74	$	178
	Accretion expense		34		23		10		3		7
	Obligations incurred		14		13		1				1
	Changes in estimated cash flow or settlement date		11		(12)		23		1		22
	Effect of foreign currency exchange rates		1
	Obligations settled		(8)		(5)		(3)		(3)
Balance at September 30, 2014		$	757	$	423	$	283	$	75	$	208