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Asset Impairment Expense (Tables)

6 Months Ended

Jun. 30, 2013

Impairment or Disposal of Tangible Assets Disclosure [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset



	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
	(in millions)
Beaver Valley	$	—	$	—	$	46	$	—
Kelanitissa	—		7		—		12
St. Patrick	—		11		—		11
Other	—		—		2		5
Total asset impairment expense	$	—	$	18	$	48	$	28

- Definition

Tabular disclosure for impairment of long-lived assets held and used by an entity which includes a description of the impaired long-lived asset and facts and circumstances leading to the impairment, aggregate amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported.

+ References+ Details