PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

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

		December 31,
	Useful Lives	2020		2019
		($ in millions)
Land and improvements to land	10-20 Years(1)	$	282.7	$	277.5
Buildings and building equipment	10-30 Years	409.4		392.4
Machinery and equipment	3-20 Years	5,945.2		5,566.0
Leasehold improvements	3-11 Years	8.3		9.9
Construction in progress		245.2		346.1
Property, plant and equipment		6,890.8		6,591.9
Accumulated depreciation		(3,719.8)		(3,268.1)
Property, plant and equipment, net		$	3,171.0	$	3,323.8

(1)    Useful life is exclusively related to improvements to land as land is not depreciated.