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Inventories (Tables)
3 Months Ended
Mar. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventory, current Major components of inventory were as follows (in millions): 
 
March 30,
2019
 
December 31,
2018
Finished goods
$
474.0

 
$
444.9

Work in process
199.3

 
197.5

Raw materials
239.6

 
235.6

Total inventories
$
912.9

 
$
878.0