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Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:
 March 31, 2022December 31, 2021
 (in millions)
   
Raw materials and work-in-progress$359.0 $339.7 
Finished goods75.5 89.3 
Gross inventories434.5 429.0 
Inventory valuation reserves(21.8)(18.6)
Inventories, net$412.7 $410.4