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Inventories
6 Months Ended
Jul. 02, 2021
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
The classes of inventory are summarized as follows ($ in millions):
July 2, 2021December 31, 2020
Finished goods$258.4 $219.0 
Work in process36.2 39.8 
Raw materials101.4 93.7 
Reserve for inventory obsolescence(84.5)(85.6)
Total$311.5 $266.9