PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment along with respective useful lives

		December 31,
	Useful Lives	2016			2015
		($ in millions)
Land and improvements to land	10-20 Years	$	281.2		$	280.4
Buildings and building equipment	10-30 Years	375.0			380.4
Machinery and equipment	3-15 Years	4,765.9			4,665.8
Leasehold improvements		3.4			2.7
Construction in progress		171.0			123.5
Property, plant and equipment		5,596.5			5,452.8
Accumulated depreciation		(1,891.6		)	(1,499.4		)
Property, plant and equipment, net		$	3,704.9		$	3,953.4