Property, Plant and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

NOTE 6. PROPERTY, PLANT AND EQUIPMENT

The classes of property, plant and equipment as of December 31 are summarized as follows ($ in millions):

	2016			2015
Land and improvements	$	63.5		$	66.0
Buildings and leasehold improvements		340.8			344.8
Machinery and equipment		1,147.5			1,080.8
Gross property, plant and equipment		1,551.8			1,491.6
Less: accumulated depreciation		(1,004.2	)		(976.8	)
Property, plant and equipment, net	$	547.6		$	514.8

Total depreciation expense was $91 million, $88 million and $88 million for the years ended December 31, 2016, 2015 and 2014, respectively. Capital expenditures totaled $130 million, $120 million and $103 million for the years ended December 31, 2016, 2015 and 2014, respectively. There was no capitalized interest related to capitalized expenditures in any period.