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Inventories
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
    Inventories at March 31, 2021 and December 31, 2020 were as follows (in millions):
March 31, 2021December 31, 2020
Finished goods$768.9 $641.3 
Repair and replacement parts684.8 652.3 
Work in process317.0 175.1 
Raw materials589.6 505.7 
Inventories, net$2,360.3 $1,974.4