Segment Information - (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]
Document Period End Date				Sep. 30, 2018
Summary of Segment Information
Total net sales by segment		$ 1,119.0	$ 1,122.7	$ 3,288.8	$ 3,359.4
Segment operating profit (loss)		(133.9)	(8.6)	(287.6)	(89.3)
Impairment of assets		109.3	0.0	199.3	3.1
Restructuring charges		(38.3)	(17.4)	(44.4)	(44.7)
Other expense		(39.0)	(21.7)	(93.4)	(77.7)
Income (loss) from continuing operations before taxes		(172.9)	(30.3)	(381.0)	(167.0)
Operating Segments [Member]
Summary of Segment Information
Intersegment revenues		37.8	29.4	99.8	103.7
Segment operating profit (loss)		66.4	81.8	126.7	210.3
Operating Segments [Member] | Eurasia Banking
Summary of Segment Information
Total net sales by segment		434.3	461.1	1,306.9	1,372.6
Intersegment revenues		35.2	24.3	88.2	81.3
Segment operating profit (loss)		43.2	40.0	79.8	91.0
Operating Segments [Member] | Americas Banking
Summary of Segment Information
Total net sales by segment		382.5	376.7	1,086.8	1,128.7
Intersegment revenues		2.6	5.1	11.6	22.4
Segment operating profit (loss)		4.0	14.5	10.4	48.0
Operating Segments [Member] | Retail
Summary of Segment Information
Total net sales by segment		302.2	284.9	895.1	858.1
Segment operating profit (loss)		19.2	27.3	36.5	71.3
Corporate and Reconciling Items [Member]
Summary of Segment Information
Segment operating profit (loss)		(200.3)	(90.4)	(414.3)	(299.6)
Corporate
Summary of Segment Information
Segment operating profit (loss)	[1]	(10.0)	(0.3)	(47.4)	(48.7)
Segment Reconciling Items [Member]
Summary of Segment Information
Restructuring charges		(38.3)	(17.4)	(44.4)	(44.7)
Net non-routine expense		$ (152.0)	$ (72.7)	$ (322.5)	$ (206.2)

[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 IT, tax, treasury and legal.