PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

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

		December 31,
	Useful Lives	2018			2017
		($ in millions)
Land and improvements to land	10-20 Years	$	276.9		$	281.7
Buildings and building equipment	10-30 Years	387.6			382.4
Machinery and equipment	3-20 Years	5,252.0			5,028.4
Leasehold improvements		5.2			3.9
Construction in progress		341.4			212.5
Property, plant and equipment		6,263.1			5,908.9
Accumulated depreciation		(2,781.0		)	(2,333.1		)
Property, plant and equipment, net		$	3,482.1		$	3,575.8