Property, Plant And Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Schedule Of 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	$	150.5		$	121.7
Buildings	880.9			890.1
Machinery and equipment	1,953.9			1,690.2
Customer-leased instruments	1,332.0			1,287.7
Gross property, plant and equipment	4,317.3			3,989.7
Less: accumulated depreciation	(1,963.3		)	(1,687.0		)
Property, plant and equipment, net	$	2,354.0		$	2,302.7