Inventories (Tables)

9 Months Ended

Sep. 30, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories are valued at the lower of cost (on a first-in, first-out basis) or net realizable value. Inventory balances were as follows:

($ in millions)	September 30, 2023		December 31, 2022
Raw materials	$	180.2	$	170.7
Work in process	93.8		79.0
Finished goods	157.8		165.1
	$	431.8	$	414.8