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Inventories
6 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consist of (in millions):
March 31, 2023September 30, 2022
Finished goods$427.4 $325.0 
Work in process360.0 317.3 
Raw materials541.1 411.9 
Inventories$1,328.5 $1,054.2