Divestitures (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2016	Nov. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Document Period End Date	Mar. 31, 2017
Cost of sales
Income (loss) from discontinued operations, net of tax	$ 0.0		$ 147.8
Aevi International GmbH And Diebold Nixdorf AG China Subsidiaries [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture		$ 27.7
Diebold Nixdorf AG China Subsidiaries [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncash or Part Noncash Divestiture, Amount of Consideration Received		$ 44.7
NA Electronic Security [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture			$ 350.0
Agreed upon contingent payment on divestiture			10.00%
Gain on sale of discontinued operation, net of tax			$ 149.1
Credit for transition services			6.0
Credit for transition services quarterly payment			5.0
Credit for transition services credit against payments			1.0
Payment of quarterly transition services				$ 5.0
Use of credit against payments, transition services				1.0
Services and software			8.5
Systems			16.3
Net sales			24.8
Cost of sales
Services and software			6.9
Systems			15.1
Cost of sales			22.0
Gross profit			2.8
Selling and administrative expense			4.8
Income from discontinued operations before taxes			(2.0)
Income tax expense (benefit)			(0.7)
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest			(1.3)
Gain on sale of discontinued operations before taxes			243.3	$ 239.5
Income tax (benefit) expense			94.2
Income (loss) from discontinued operations, net of tax			$ 147.8
Inspur (Suzhou) Financial Technology Service Co Ltd [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					51.00%
Aisino Wincor Joint Venture [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity Method Investment, Ownership Percentage	43.60%