Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net sales
Net sales	$ 810.4	$ 958.2	$ 2,491.9	$ 2,845.6
Cost of sales
Total cost of sales	616.6	698.1	1,952.0	2,060.4
Gross profit	193.8	260.1	539.9	785.2
Selling and administrative expense	163.1	195.5	557.9	603.7
Research, development and engineering expense	26.7	25.6	92.1	95.3
Asset Impairment Charges		0.3	64.7	0.3
Impairment of assets	(5.6)	0.0	(5.4)	(1.9)
Total operating expense	188.3	221.4	709.3	697.4
Operating profit (loss)	5.5	38.7	(169.4)	87.8
Other income (expense)
Interest income	3.6	1.0	5.9	5.0
Interest expense	(50.7)	(51.3)	(148.4)	(149.7)
Foreign exchange gain (loss), net	5.3	4.4	2.9	0.9
Miscellaneous, net	(9.7)	4.6	(2.5)	6.6
Loss before taxes	(46.0)	(2.6)	(311.5)	(49.4)
Income tax expense (benefit)	3.9	(1.1)	119.0	(11.1)
Equity in loss of unconsolidated subsidiaries	(0.6)	(0.5)	(3.0)	(2.1)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	(50.5)	(2.0)	(433.5)	(40.4)
Net income (loss) attributable to noncontrolling interests	(0.7)	0.1	(1.4)	0.1
Net loss attributable to Diebold Nixdorf, Incorporated	$ (49.8)	$ (2.1)	$ (432.1)	$ (40.5)
Weighted-average number of common shares used in basic and diluted loss per share (1)	79.1	78.3	78.9	78.2
Earnings Per Share [Abstract]
Basic and diluted loss per share	$ (0.63)	$ (0.03)	$ (5.48)	$ (0.52)
Service [Member]
Net sales
Net sales	$ 514.3	$ 561.7	$ 1,565.9	$ 1,722.0
Cost of sales
Total cost of sales	356.7	382.5	1,106.0	1,182.0
Product [Member]
Net sales
Net sales	296.1	396.5	926.0	1,123.6
Cost of sales
Total cost of sales	259.9	315.6	846.0	878.4
Retained Earnings [Member]
Other income (expense)
Net loss attributable to Diebold Nixdorf, Incorporated	$ (49.8)	$ (2.1)	$ (432.1)	$ (40.5)