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Inventories (Tables)
6 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block] Inventories consist of the following:
 June 30, 2022December 31, 2021
 (in millions)
   
Raw materials and work-in-progress$416.3 $339.7 
Finished goods83.8 89.3 
Gross inventories500.1 429.0 
Inventory valuation reserves(29.3)(18.6)
Inventories, net$470.8 $410.4