Reorganizations (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Reorganization, Chapter 11 [Line Items]
Net sales	$ 922.2		$ 851.7		$ 1,780.3	$ 1,681.5
Total cost of sales	697.0		690.9		1,345.8	1,335.4
Gross profit	225.2		160.8		434.5	346.1
Selling and administrative expense	201.0		213.8		384.8	394.8
Research, development and engineering expense	25.4		33.1		51.8	65.4
Gain (Loss) on Disposition of Assets	0.9		0.0		1.2	0.2
Asset Impairment Charges	1.8		5.4		2.7	60.6
Operating expense	229.1		252.3		440.5	521.0
Operating profit (loss)	(3.9)		(91.5)		(6.0)	(174.9)
Investment Income, Nonoperating	3.3		1.0		5.0	2.3
Interest expense	(69.7)		(49.6)		(151.6)	(97.7)
Foreign Currency Transaction Gain (Loss), before Tax	1.5		2.3		(9.1)	(2.4)
Reorganization Items	(636.2)		0.0		(636.2)	0.0
Other Nonoperating Income (Expense)	3.5		4.6		6.1	7.2
Income (loss) from continuing operations before taxes	(701.5)		(133.2)		(791.8)	(265.5)
Income Tax Expense (Benefit)	(24.8)		64.2		(3.7)	115.1
Net loss	(677.3)	$ (111.5)	$ (199.1)	$ (183.9)	(788.8)	$ (383.0)
Diebold Nixdorf, Incorporated and Certain Subsidiaries Party to the Bankruptcy Cases
Reorganization, Chapter 11 [Line Items]
Net sales	506.9				1,002.8
Total cost of sales	388.2				771.3
Gross profit	118.7				231.5
Selling and administrative expense	144.7				274.9
Research, development and engineering expense	5.9				13.3
Gain (Loss) on Disposition of Assets	0.9				1.2
Asset Impairment Charges	1.1				2.2
Operating expense	152.6				291.6
Operating profit (loss)	(33.9)				(60.1)
Investment Income, Nonoperating	1.4				2.0
Interest expense	(56.1)				(49.6)
Foreign Currency Transaction Gain (Loss), before Tax	9.6				3.5
Reorganization Items	(514.0)				(514.0)
Other Nonoperating Income (Expense)	(3.3)				(0.1)
Income (loss) from continuing operations before taxes	(596.3)				(618.3)
Income Tax Expense (Benefit)	8.2				34.8
Net loss	$ (604.5)				$ (653.1)