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Inventoried Costs
6 Months Ended
Jun. 28, 2020
Inventory Disclosure [Abstract]  
Inventoried Costs Inventoried Costs
 
Inventoried costs, consisted of the following components (in millions):
 
 June 28, 2020December 29, 2019
Raw materials$42.8  $39.1  
Work in process22.1  20.3  
Finished goods2.0  1.7  
Total inventoried costs$66.9  $61.1