Inventory (Tables)

6 Months Ended

Mar. 31, 2023

Inventory, Net [Abstract]

Schedule Of Inventories

Inventory consists of the following (in millions):

	As of
	March 31, 2023		September 30, 2022
Raw materials	$	80.7	$	81.3
Work-in-process	762.5		805.3
Finished goods	411.2		322.5
Finished goods held on consignment by customers	2.6		3.0
Total inventory	$	1,257.0	$	1,212.1