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Receivables
6 Months Ended
Jun. 30, 2013
Receivables [Abstract]  
Receivables
Note 4: Receivables
 
Receivables consisted of the following (in millions):

 
 
June 30,
2013
 
 
December 31,
2012
 
 
 
 
 
 
 
 
Trade receivables
 
$
2,110.9
 
 
$
1,823.2
 
Other receivables
 
 
186.4
 
 
 
151.4
 
Allowance for doubtful accounts
 
 
(8.4
)
 
 
(7.9
)
Total receivables
 
$
2,288.9
 
 
$
1,966.7