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Discontinued Operations
 6 Months Ended
Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations
DISCONTINUED OPERATIONS
In January 2013, Alliant Energy sold RMT to narrow its strategic focus and risk profile. The operating results of RMT have been separately classified and reported as discontinued operations in Alliant Energy’s income statements. A summary of the components of discontinued operations in Alliant Energy’s income statements for the three and six months ended June 30 was as follows (in millions):
 
Three Months
 
Six Months
 
2014
 
2013
 
2014
 
2013
Operating revenues

$—

 

$—

 

$—

 

$0.9

Operating expenses
0.6

 
0.9

 
0.6

 
6.5

Loss before income taxes
(0.6
)
 
(0.9
)
 
(0.6
)
 
(5.6
)
Income tax benefit
(0.3
)
 
(0.3
)
 
(0.3
)
 
(2.0
)
Loss from discontinued operations, net of tax

($0.3
)
 

($0.6
)
 

($0.3
)
 

($3.6
)