Inventories - Schedule of Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 787.3	$ 818.4
Work-in-process	1,123.9	963.1
Finished goods	114.2	98.6
Deferred costs	536.6	521.8
Total Inventories	$ 2,562.0	$ 2,401.9