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Discontinued Operations (Tables)
9 Months Ended
Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]  
Summary of financial information for discontinued operations
During 2013 and prior to our adoption of ASU 2014-08 as further discussed in Note 2, certain disposal transactions were considered discontinued operations. A summary of the financial information for these discontinued operations is as follows:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2013
 
2013
 
(In millions)
Revenue from discontinued operations
$
0.4

 
$
1.5

Income from discontinued operations
$
0.1

 
$
0.9