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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedule of Inventories The following is a summary of inventories at December 31:
($ in millions)20222021
Raw materials$170.7 $153.8 
Work in process79.0 63.5 
Finished goods165.1 161.1 
$414.8 $378.4