Segment Information - (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Document Period End Date				Jun. 30, 2017
Summary of Segment Information
Net sales		$ 1,133.9	$ 580.0	$ 2,236.7	$ 1,089.6
Operating profit (loss)		(30.1)	10.3	(78.7)	4.6
Impairment of assets		0.0	0.0	3.1	0.0
Restructuring charges		(14.4)	(5.0)	(27.3)	(5.4)
Other expense		(29.8)	(46.0)	(56.0)	(20.4)
Income (loss) from continuing operations before taxes		(59.9)	(35.7)	(134.7)	(15.8)
Depreciation and amortization expense				116.6	30.9
Services and software		687.9	360.2	1,371.5	699.5
Systems		446.0	219.8	865.2	390.1
Operating Segments [Member]
Summary of Segment Information
Operating profit (loss)		81.8	58.0	164.4	96.8
Operating Segments [Member] | Services Segment [Member]
Summary of Segment Information
Net sales		580.2	329.6	1,153.4	646.5
Operating profit (loss)		77.0	71.8	158.2	134.0
Operating Segments [Member] | Software Segment [Member]
Summary of Segment Information
Net sales		107.7	30.6	218.1	53.0
Operating profit (loss)		6.4	0.2	11.7	(8.1)
Operating Segments [Member] | Systems Segment [Member]
Summary of Segment Information
Net sales		446.0	219.8	865.2	390.1
Operating profit (loss)		(1.6)	(14.0)	(5.5)	(29.1)
Corporate and Reconciling Items [Member]
Summary of Segment Information
Operating profit (loss)		(111.9)	(47.7)	(243.1)	(92.2)
Corporate, Non-Segment [Member]
Summary of Segment Information
Operating profit (loss)	[1]	(41.4)	(24.5)	(82.3)	(54.5)
Segment Reconciling Items [Member]
Summary of Segment Information
Restructuring charges		(14.4)	(5.0)	(27.3)	(5.4)
Net non-routine expense		$ (56.1)	$ (18.2)	$ (133.5)	$ (32.3)

[1] Corporate charges not allocated to segments include headquarter-based costs associated with procurement, human resources, compensation and benefits, finance and accounting, global development/engineering, global strategy/mergers and acquisitions, global information technology, tax, treasury and legal.