Segment Information (Textuals) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Document Period End Date			Jun. 30, 2018
Impairment of assets	$ 90.0	$ 0.0	$ 90.0	$ 3.1
Legal, Acquisition, and Divestiture Fees		22.1		17.4
Business Combination, Integration Related Costs	14.5		29.6	34.9
Cost of sales	885.9	896.1	1,709.2	1,756.4
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Non Routine Expenses Net	135.2	56.1	170.5	133.5
Diebold Nixdorf AG [Member]
Segment Reporting Information [Line Items]
Purchase accounting adjustment related to amortization of acquired intangible assets	$ (29.3)	(32.8)	$ (60.5)	(64.6)
Purchase accounting adjustment related to acquired deferred revenue		$ 10.3		$ 20.7