Property, Plant and Equipment

12 Months Ended

Dec. 31, 2018

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

10. Property, Plant and Equipment

DECEMBER 31	2018			2017			Estimated life
Land and land improvements	$	114.7		$	113.4		n/a to 15
Machinery and equipment		3,496.8			3,276.1		3-8
Buildings		822.9			816.2		20-40
Construction in progress		374.3			370.6		n/a
Property, plant and equipment	$	4,808.7		$	4,576.3
Less accumulated depreciation		(3,118.6	)		(2,967.4	)
Net of depreciation	$	1,690.1		$	1,608.9

DEPRECIATION INCLUDED IN	2018		2017		2016
Cost of sales	$	300.9	$	268.9	$	248.3
Selling, general and administrative expenses		13.9		12.5		8.6
Research, development and engineering expenses, net		15.9		14.5		12.7
Total	$	330.7	$	295.9	$	269.6

No significant fixed asset impairments related to the Company’s continuing operations were recognized during 2018, 2017 or 2016.

The net book value of machinery and equipment and buildings and land under capital lease contracts recorded at December 31, 2018 and December 31, 2017 were immaterial. The amortization expense related to capital leases is included with depreciation expenses disclosed in the table above.