Segment Information (Textuals) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Inventory Write-down	$ 23.8	$ 74.5	$ 4.2
Business Combination, Integration Related Costs		$ 47.2	$ 72.1
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)	$ 214.1	$ 242.7	$ 261.2
Diebold Nixdorf AG
Segment Reporting Information [Line Items]
Purchase Accounting Pretax Charge Amortization Expense	$ 93.3	$ 113.4	$ 160.9