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Inventories
6 Months Ended
Jun. 30, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
As of June 30, 2023As of December 31, 2022
(in millions)
Raw materials$71.8 $38.1 
Work-in-process398.9 260.7 
Finished goods
132.8 161.8 
Total
$603.5 $460.6