Net Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Net revenues	$ 711.5	$ 609.4	$ 2,029.3	$ 1,785.1
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	530.1	455.2	1,495.9	1,331.4
EMEIA [Member]
Segment Reporting Information [Line Items]
Net revenues	134.4	125.1	432.5	372.7
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net revenues	47.0	29.1	100.9	81.0
Product [Member]
Segment Reporting Information [Line Items]
Net revenues	704.4	604.9	2,014.2	1,772.6
Product [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	530.1	455.2	1,495.9	1,331.4
Product [Member] | EMEIA [Member]
Segment Reporting Information [Line Items]
Net revenues	129.5	120.6	419.6	360.2
Product [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net revenues	44.8	29.1	98.7	81.0
Services [Member]
Segment Reporting Information [Line Items]
Net revenues	7.1	4.5	15.1	12.5
Services [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	0.0	0.0	0.0	0.0
Services [Member] | EMEIA [Member]
Segment Reporting Information [Line Items]
Net revenues	4.9	4.5	12.9	12.5
Services [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net revenues	$ 2.2	$ 0.0	$ 2.2	$ 0.0