INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories Table

Inventories consisted of the following:

	March 31, 2018			December 31, 2017			March 31, 2017
	($ in millions)
Supplies	$	65.7		$	66.1		$	60.1
Raw materials	75.3			75.3			68.9
Work in process	139.8			127.8			115.0
Finished goods	440.8			462.6			448.3
	721.6			731.8			692.3
LIFO reserve	(46.0		)	(49.2		)	(36.0		)
Inventories, net	$	675.6		$	682.6		$	656.3