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Inventories
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
    Inventories at September 30, 2021 and December 31, 2020 were as follows (in millions):
September 30, 2021December 31, 2020
Finished goods$760.8 $641.3 
Repair and replacement parts697.1 652.3 
Work in process413.4 175.1 
Raw materials867.0 505.7 
Inventories, net$2,738.3 $1,974.4