Inventories

6 Months Ended

Jun. 30, 2016

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)	June 30, 2016		December 31, 2015
Raw materials	$	80.1	$	74.4
Work in process	32.2		30.1
Finished goods	85.4		76.6
	$	197.7	$	181.1