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Inventories
12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories consisted of the following:
 
December 31,
 
2016
 
2015
 
(in millions)
Finished goods
$
6.8

 
$
7.2

Raw materials, spare parts and supplies
1.8

 
3.5

Total
$
8.6

 
$
10.7