Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Inventories

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

($ in millions)	June 30, 2013		December 31, 2012
Finished goods	$	75.5	$	70.9
Work in process	28.8		23.6
Raw materials	72.2		67.7
	$	176.5	$	162.2