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Inventories
6 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consist of (in millions):
March 31, 2022September 30, 2021
Finished goods$300.0 $287.0 
Work in process293.7 229.3 
Raw materials337.5 281.8 
Inventories$931.2 $798.1