Property, Plant, and Equipment (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Components of Property, Plant, and Equipment

The components of property, plant, and equipment were as follows (dollars in millions):

	March 31, 2017			December 31, 2016
Land and land improvements	$	154.1		$	149.7
Buildings	723.7			717.1
Machinery and equipment	4,987.7			4,951.4
Construction in progress	133.3			125.4
Other	66.2			66.7
Property, plant, and equipment, at cost	6,065.0			6,010.3
Less accumulated depreciation	(3,177.8		)	(3,114.6		)
Property, plant, and equipment, net	$	2,887.2		$	2,895.7