Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2018

Property Plant And Equipment [Abstract]

Summary of Property, Plant and Equipment

	March 31,			December 31,
	2018			2017
	(in millions)
Land	$	29.3		$	29.0
Buildings and equipment		1,880.4			1,838.5
Capitalized software costs		433.9			421.6
Instruments		2,786.9			2,683.9
Construction in progress		116.4			110.7
		5,246.9			5,083.7
Accumulated depreciation		(3,215.6	)		(3,045.1	)
Property, plant and equipment, net	$	2,031.3		$	2,038.6