Segment Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary of Segment Information
Net sales		$ 3,905.2	$ 3,902.3	$ 4,408.7
Segment operating profit		137.1	24.0	(26.6)
Loss (gain) on sale of assets, net		(1.3)	(7.5)	(30.2)
Restructuring and DN Now transformation expenses		(28.2)	(81.6)	(50.2)
Other expense		(187.8)	(293.5)	(202.3)
Income (loss) from continuing operations before taxes		(50.7)	(269.5)	(228.9)
Eurasia Banking Segment [Member]
Summary of Segment Information
Net sales		1,353.8	1,431.1	1,649.8
Americas Banking Segment [Member]
Summary of Segment Information
Net sales		1,357.3	1,419.4	1,604.1
Retail Segment [Member]
Summary of Segment Information
Net sales		1,194.1	1,051.8	1,154.8
Segment Reconciling Items [Member]
Summary of Segment Information
Loss (gain) on sale of assets, net		(1.3)	(7.5)	(30.2)
Restructuring and Other Transformation Charges		(98.9)	(181.8)	(114.8)
Net non-routine expense		(95.4)	(142.1)	(149.5)
Operating Segments [Member]
Summary of Segment Information
Net sales		3,905.2	3,902.3	4,408.7
Revenue from Related Parties		151.5	123.1	183.8
Segment operating profit		371.1	412.4	347.3
Operating Segments [Member] | Eurasia Banking Segment [Member]
Summary of Segment Information
Net sales		1,353.8	1,431.1	1,649.8
Revenue from Related Parties		139.1	111.8	168.3
Segment operating profit		110.4	160.5	169.3
Operating Segments [Member] | Americas Banking Segment [Member]
Summary of Segment Information
Net sales		1,357.3	1,419.4	1,604.1
Revenue from Related Parties		12.4	11.3	15.5
Segment operating profit		146.4	184.9	119.7
Operating Segments [Member] | Retail Segment [Member]
Summary of Segment Information
Net sales		1,194.1	1,051.8	1,154.8
Segment operating profit		114.3	67.0	58.3
Corporate, Non-Segment [Member]
Summary of Segment Information
Corporate charges not allocated back to segments	[1]	(38.4)	(57.0)	(79.4)
Corporate And Reconciling Items [Member]
Summary of Segment Information
Reconciliation of Operating Profit (Loss) from Segments to Consolidated		(234.0)	(388.4)	$ (373.9)
Legal Consulting And Deal Expense Including Gains And Loss On Divestitures | Segment Reconciling Items [Member]
Summary of Segment Information
Net non-routine expense		$ (10.1)	$ (19.7)

[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.