Asset Retirement Obligations

3 Months Ended

Mar. 31, 2016

Asset Retirement Obligations [Line Items]

Asset Retirement Obligations

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, 2015		$	586	$	535	$	175	$	360
	Accretion		6		6		2		4
	Effect of foreign currency exchange rates		(4)
	Obligations settled		(1)		(1)		(1)
Balance at March 31, 2016		$	587	$	540	$	176	$	364

LKE’s, LG&E’s and KU’s ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the final CCR rule and Note 6 for information on the rate recovery applications with the KPSC. LG&E's and KU's accretion and ARO-related depreciation expense are recorded as a regulatory asset, such that there is no net earnings impact.

LG And E And KU Energy LLC [Member]

Asset Retirement Obligations [Line Items]

Asset Retirement Obligations

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, 2015		$	586	$	535	$	175	$	360
	Accretion		6		6		2		4
	Effect of foreign currency exchange rates		(4)
	Obligations settled		(1)		(1)		(1)
Balance at March 31, 2016		$	587	$	540	$	176	$	364

LKE’s, LG&E’s and KU’s ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the final CCR rule and Note 6 for information on the rate recovery applications with the KPSC. LG&E's and KU's accretion and ARO-related depreciation expense are recorded as a regulatory asset, such that there is no net earnings impact.

Louisville Gas And Electric Co [Member]

Asset Retirement Obligations [Line Items]

Asset Retirement Obligations

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, 2015		$	586	$	535	$	175	$	360
	Accretion		6		6		2		4
	Effect of foreign currency exchange rates		(4)
	Obligations settled		(1)		(1)		(1)
Balance at March 31, 2016		$	587	$	540	$	176	$	364

LKE’s, LG&E’s and KU’s ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the final CCR rule and Note 6 for information on the rate recovery applications with the KPSC. LG&E's and KU's accretion and ARO-related depreciation expense are recorded as a regulatory asset, such that there is no net earnings impact.

Kentucky Utilities Co [Member]

Asset Retirement Obligations [Line Items]

Asset Retirement Obligations

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, 2015		$	586	$	535	$	175	$	360
	Accretion		6		6		2		4
	Effect of foreign currency exchange rates		(4)
	Obligations settled		(1)		(1)		(1)
Balance at March 31, 2016		$	587	$	540	$	176	$	364

LKE’s, LG&E’s and KU’s ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the final CCR rule and Note 6 for information on the rate recovery applications with the KPSC. LG&E's and KU's accretion and ARO-related depreciation expense are recorded as a regulatory asset, such that there is no net earnings impact.