Property, Plant and Equipment

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

	As of December 31
DECEMBER 31	2018			2017			Estimated life
Land and land improvements	$	21		$	20		n/a to 15
Machinery and equipment	662			610			3-8
Buildings	111			76			20
Construction in progress	177			72			n/a
Property, plant and equipment	$	971		$	778
Less accumulated depreciation	(472		)	(416		)
Net of accumulated depreciation	$	499		$	362
	Year Ended December 31
DEPRECIATION INCLUDED IN	2018			2017			2016
Cost of sales	$	62		$	58		$	51
Selling, general and administrative expenses	3			2			1
Research, development and engineering expenses, net	22			22			19
Total	$	88		$	82		$	71

In 2018 the Company recognized an impairment charge of approximately $1 million of fixed assets related to Brake Systems. No significant fixed asset impairments were recognized during the year ended December 31, 2017 or 2016.

The net book value of machinery, equipment, buildings and land under capital lease contracts was $13 million and $11 million as of December 31, 2018 and 2017, respectively.