Inventories

9 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories

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

($ in millions)	September 30, 2015		December 31, 2014
Raw materials	$	78.0	$	79.9
Work in process	31.1		25.6
Finished goods	78.6		76.0
	$	187.7	$	181.5