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Inventories
9 Months Ended
Oct. 01, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories
Inventories are stated at the lower of cost or market. Cost is determined using the first-in, first-out method. Finished goods and work-in-process inventories include material, labor and manufacturing overhead costs. A summary of inventories is shown below (in millions):
 
October 1,
2016
 
December 31, 2015
Raw materials
$
789.9

 
$
706.8

Work-in-process
113.9

 
90.2

Finished goods
159.2

 
150.6

Inventories
$
1,063.0

 
$
947.6