Discontinued Operations

12 Months Ended

Dec. 31, 2011

Discontinued Operations [Abstract]

Discontinued Operations

(18) DISCONTINUED OPERATIONS

In 2011, Alliant Energy sold its IEA business to narrow its strategic focus and risk profile and received net proceeds of $5 million. IEA was included in Alliant Energy's "Other Non-regulated, Parent and Other" segment. The operating results of IEA have been separately classified and reported as discontinued operations in Alliant Energy's Consolidated Statements of Income. A summary of the components of discontinued operations in Alliant Energy's Consolidated Statements of Income was as follows (in millions):

	2011			2010			2009
Operating revenues	$	1.1		$	6.3		$	5.5
Operating expenses (a)		0.6			8.9			4.5
Gain on sale of IEA		(2.5	)		—			—
Interest expense and other		—			0.2			0.3
Income (loss) before income taxes		3.0			(2.8	)		0.7
Income tax expense (benefit)		1.7			(1.1	)		(0.2	)
Income (loss) from discontinued operations, net of tax	$	1.3		($	1.7	)	$	0.9

(a) In 2010, Alliant Energy recorded pre-tax, non-cash valuation charges of $5.4 million as a result of declines in the fair value of IEA during 2010. The fair value was estimated using updated market information from bids received from potential buyers for IEA.

In 2011, RMT sold its environmental business unit and received net proceeds of $12 million. RMT's environmental business unit was included in Alliant Energy's "Non-regulated - RMT" segment. The operating results of RMT's environmental business unit and the gain realized from the sale of RMT's environmental business unit were not material and therefore have not been separately classified and reported as discontinued operations in Alliant Energy's Consolidated Statements of Income.

In February 2012, Alliant Energy announced plans to sell the remaining portion of RMT in 2012. RMT did not meet the assets held for sale criteria as of Dec. 31, 2011. As a result, the operations of RMT have not been separately classified and reported as discontinued operations in Alliant Energy's Consolidated Statements of Income, and RMT's assets and liabilities have not been separately reported as held for sale on Alliant Energy's Consolidated Balance Sheets in this Annual Report on Form 10-K. Alliant Energy currently expects to begin classifying and reporting the results of RMT in discontinued operations, and assets and liabilities as held for sale, sometime in 2012.