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Inventories (Tables)
6 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventory
The components of inventories are as follows:
31 March30 September
20232022
Finished goods$239.1 $162.0 
Work in process27.2 22.0 
Raw materials, supplies, and other379.3 330.2 
Inventories$645.6 $514.2