Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net sales
Net sales	$ 829.8	$ 943.9
Cost of sales
Total cost of sales	644.5	670.7
Gross profit	185.3	273.2
Selling and administrative expense	181.0	203.4
Research, development and engineering expense	32.3	34.1
Asset Impairment Charges	55.2	0.0
Impairment of assets	(0.2)	0.5
Total operating expense	268.7	237.0
Operating profit (loss)	(83.4)	36.2
Other income (expense)
Interest income	1.3	1.7
Interest expense	(48.1)	(48.7)
Foreign exchange gain (loss), net	(4.7)	5.7
Miscellaneous, net	2.6	(0.7)
Loss before taxes	(132.3)	(5.8)
Income tax expense	50.9	1.2
Equity in loss of unconsolidated subsidiaries	(0.7)	(1.1)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(183.9)	(8.1)
Net income (loss) attributable to noncontrolling interests	(0.8)	0.0
Net loss attributable to Diebold Nixdorf, Incorporated	$ (183.1)	$ (8.1)
Weighted-average number of common shares used in basic and diluted loss per share (1)	78.7	78.0
Earnings Per Share [Abstract]
Basic and diluted loss per share	$ (2.33)	$ (0.10)
Service [Member]
Net sales
Net sales	$ 526.2	$ 573.6
Cost of sales
Total cost of sales	374.2	389.6
Product [Member]
Net sales
Net sales	303.6	370.3
Cost of sales
Total cost of sales	270.3	281.1
Retained Earnings [Member]
Other income (expense)
Net loss attributable to Diebold Nixdorf, Incorporated	$ (183.1)	$ (8.1)