Inventory (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Components of inventory

The components of inventory are summarized as follows:

(In millions)	As of March 31, 2023		As of December 31, 2022
Raw materials	$	432.4	$	413.2
Work in process	684.9		751.9
Finished goods	205.9		200.4
Total inventory	$	1,323.2	$	1,365.5
Balance Sheet Classification:
Inventory	$	1,281.0	$	1,344.4
Investments and other assets	42.2		21.1
Total inventory	$	1,323.2	$	1,365.5