Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2011

Notes To Financial Statements [Abstract]

Asset Retirement Obligation Roll Forward

16. Asset Retirement Obligations
(PPL, LKE, LG&E and KU)
Accretion expense recorded by LG&E and KU is offset with a regulatory credit and related regulatory asset, such that there
is no income statement impact.
(PPL, PPL Energy Supply, LKE, LG&E and KU)
The changes in the carrying amounts of AROs were as follows.
					PPL
			PPL		Energy Supply		LKE		LG&E		KU
ARO at December 31, 2010			$	448	$	345	$	103	$	49	$	54
	Accretion expense			25		20		4		2		2
	Obligations assumed in acquisition of WPD
		Midlands (a)		15
	Derecognition (b)					(5)
	Obligations incurred			11		11
	Changes in estimated cash flow or settlement date			3		(4)		7		4		3
	Obligations settled			(13)		(13)
ARO at September 30, 2011			$	489	$	354	$	114	$	55	$	59

(a)       Obligations required under U.K. law related to treated wood poles, gas-filled switchgear and fluid-filled cables. See Note 8 for additional information on the acquisition.

(b)       Represents AROs derecognized as a result of PPL Energy Supply's distribution of its membership interest in PPL Global to PPL Energy Supply's parent, PPL Energy Funding. See Note 8 for additional information on the distribution.

Asset Retirement Obligation Balance Classification

The classification of AROs on the Balance Sheet was as follows.
		September 30, 2011
				PPL Energy
		PPL		Supply		LKE		LG&E		KU
Current portion (a)		$	10	$	9	$	1	$	1
Long-term portion (b)			479		345		113		54	$	59
	Total	$	489	$	354	$	114	$	55	$	59
		December 31, 2010
				PPL Energy
		PPL		Supply		LKE		LG&E		KU
Current portion (a)		$	13	$	13
Long-term portion (b)			435		332	$	103	$	49	$	54
	Total	$	448	$	345	$	103	$	49	$	54

(a)       Included in "Other current liabilities."

(b)       Included in "Asset retirement obligations."