Inventories (Tables)

9 Months Ended

Sep. 30, 2011

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:

	September 30,		December 31,
($ in millions)	2011		2010
Finished goods	$	68.9	$	65.1
Work in process		21.7		21.4
Raw materials		64.9		60.5
	$	155.5	$	147.0