Segment Information (Textuals) (Details) $ in Millions	5 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) segments	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Legal, Acquisition, and Divestiture Fees		$ 16.1	$ 0.0
Business Combination, Integration Related Costs		72.1	104.3
Total cost of sales		$ 3,599.6	$ 2,594.6	$ 1,767.3
Number of Reportable Segments | segments		3
Number of customers that account for greater than 10% of revenue		0	0	0
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net, non-routine income (expense)		$ 255.3	$ 249.3	$ 36.4
Diebold Nixdorf AG
Segment Reporting Information [Line Items]
Purchase Accounting Pretax Charge Deferred Revenue	$ 30.4	30.4
Purchase Accounting Pretax Charge Amortization Expense	$ 128.4	128.4
Measurement Period December31 To June30 [Member]
Segment Reporting Information [Line Items]
Total cost of sales		$ 1.9