Property, Plant and Equipment

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment, net is comprised of the following (in millions):

	December 31,
	2019			2018
Buildings	$	63		$	57
Land	7			7
Machinery and equipment	232			204
Furniture and office equipment	20			18
Software and computer equipment	168			161
Leasehold improvements	84			75
Projects in progress	36			24
	610			546
Less accumulated depreciation	(351		)	(297		)
Property, plant and equipment, net	$	259		$	249

Depreciation expense was $72 million, $78 million and $79 million for the years ended December 31, 2019, 2018 and 2017, respectively.