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Inventories
3 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories are summarized as follows: 
 
 
December 31,
2017
 
October 1,
2017
Raw materials
 
$
63.1

 
$
42.5

Work in process
 
125.0

 
120.6

Finished goods
 
82.6

 
76.0

 
 
$
270.7

 
$
239.1