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Inventories (Tables)
3 Months Ended
Dec. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current
Inventories consist of (in millions):
December 31, 2020September 30, 2020
Finished goods$276.8 $243.0 
Work in process165.4 159.1 
Raw materials198.4 181.9 
Inventories$640.6 $584.0