STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Diebold Nixdorf Shareholders' equity	Common stock	Accumulated other comprehensive income	Paid-in-capital	Retained earnings	Treasury shares	Noncontrolling interests
Beginning balance at Dec. 31, 2024			$ 0.4	$ (117.9)	$ 1,048.4	$ (1.1)	$ 0.0	$ 8.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ (7.5)					(8.3)		0.8
Other comprehensive income	68.9			69.1				(0.2)
Share-based compensation			0.0		3.0
Purchases							(9.6)
Distributions to non-controlling interest holders, net								(2.0)
Ending balance at Mar. 31, 2025	991.0	$ 984.0	0.4	(48.8)	1,051.4	(9.4)	(9.6)	7.0
Beginning balance at Dec. 31, 2025	1,104.8		0.4	77.8	1,060.5	91.9	(130.7)	4.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	5.5					5.0		0.5
Other comprehensive income	(27.2)			(25.1)				(2.1)
Share-based compensation			0.0		3.5
Purchases	(55.0)						(60.4)
Distributions to non-controlling interest holders, net								0.0
Ending balance at Mar. 31, 2026	$ 1,026.2	$ 1,022.9	$ 0.4	$ 52.7	$ 1,064.0	$ 96.9	$ (191.1)	$ 3.3