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Inventories (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
June 30,
2020
December 31,
2019
 (in millions)
Finished products$74.5  $80.6  
Work in process24.9  23.7  
Raw materials and supplies56.9  56.1  
156.3  160.4  
Reserve to reduce certain inventories to LIFO basis(3.3) (3.3) 
Total inventories$153.0  $157.1