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Inventories
3 Months Ended
Mar. 29, 2019
Inventory, Net [Abstract]  
Inventories
7.
Inventories
Inventories were comprised of the following at the end of each period: 
 
March 29,
2019
 
December 28,
2018
Raw materials and supplies
$
64.2

 
$
69.2

Work in process
168.6

 
167.6

Finished goods
86.9

 
85.5

 
$
319.7

 
$
322.3