Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Shares	Additional Capital	Retained Earnings [Member]	Treasury Shares	AOCI Attributable to Parent [Member]	Total Diebold Nixdorf, Incorporated Shareholders' Equity	Non-controlling Interests
Balance (shares) at Dec. 31, 2015		79.7
Balance at Dec. 31, 2015	$ 428.0	$ 99.6	$ 430.8	$ 752.8	$ (560.2)	$ (318.1)	$ 404.9	$ 23.1
Net loss	(35.6)			(41.6)			(41.6)	6.0
Other comprehensive income (loss)						(23.2)	(23.2)
Other comprehensive income (loss), noncontrolling								3.2
Other comprehensive (loss) income, net of tax	(20.0)
Other comprehensive income (loss), net of tax and noncontrolling interest adjustment	(20.0)
Stock options exercised (shares)		0.0
Stock options exercised	0.3	$ 0.0	0.3				0.3
Restricted stock units issued, shares		0.3
Share-based compensation issued	0.0	$ 0.4	(0.4)				0.0
Income tax detriment from share-based compensation	(0.2)		(0.2)				(0.2)
Share-based compensation expense	22.2		22.2				22.2
Dividends declared and paid	(64.6)			(64.6)			(64.6)
Treasury shares	(2.2)				(2.2)		(2.2)
Sale of equity interest	7.1						0.0	7.1
Reclassification of guaranteed dividend to accrued liabilities	(5.7)						0.0	(5.7)
Distributions to noncontrolling interest holders, net	(8.2)						0.0	(8.2)
Acquired fair value of noncontrolling interest	407.9						0.0	407.9
Acquisition of Diebold Nixdorf AG, shares issued		9.9
Acquisition of Diebold Nixdorf AG	279.7	$ 12.4	267.3				279.7	0.0
Balance (shares) at Dec. 31, 2016		89.9
Balance at Dec. 31, 2016	$ 1,008.7	$ 112.4	720.0	646.6	(562.4)	(341.3)	575.3	433.4
Common Shares, $1.25 Par Value	$ 1.25
Net loss	$ (54.5)
Balance (shares) at Dec. 31, 2016		89.9
Balance at Dec. 31, 2016	1,008.7	$ 112.4	720.0	646.6	(562.4)	(341.3)	575.3	433.4
Net loss	(213.9)			(241.5)			(241.5)	27.6
Other comprehensive income (loss)	145.0					145.0	145.0
Other comprehensive income (loss), noncontrolling								5.9
Other comprehensive (loss) income, net of tax	150.9
Other comprehensive income (loss), net of tax and noncontrolling interest adjustment	150.9
Stock options exercised (shares)		0.0
Stock options exercised	0.3	$ 0.0	0.3				0.3
Restricted stock units issued, shares		0.6
Share-based compensation issued	0.1	$ 0.8	(0.7)				0.1
Share-based compensation expense	33.9		33.9				33.9
Dividends declared and paid	(30.6)			(30.6)			(30.6)
Treasury shares	(5.0)				(5.0)		(5.0)
Reclassification of guaranteed dividend to accrued liabilities	(24.6)						0.0	(24.6)
Reclassification From Noncontrolling Interests To Redeemable Noncontrolling Interests	(418.7)		(32.0)				(32.0)	(386.7)
Distributions to noncontrolling interest holders, net	(18.8)						0.0	(18.8)
Balance (shares) at Dec. 31, 2017		90.5
Balance at Dec. 31, 2017	482.3	$ 113.2	721.5	374.5	(567.4)	(196.3)	445.5	36.8
Net loss	(24.1)
Net loss	(32.6)
Net loss	(102.7)
Balance (shares) at Dec. 31, 2017		90.5
Balance at Dec. 31, 2017	$ 482.3	$ 113.2	721.5	374.5	(567.4)	(196.3)	445.5	36.8
Common Shares, $1.25 Par Value	$ 1.25
Net loss	$ (65.6)
Balance (shares) at Dec. 31, 2017		90.5
Balance at Dec. 31, 2017	482.3	$ 113.2	721.5	374.5	(567.4)	(196.3)	445.5	36.8
Net loss	(566.0)			(568.7)			(568.7)	2.7
Other comprehensive income (loss)	(107.4)					(107.4)	(107.4)
Other comprehensive income (loss), noncontrolling								(3.9)
Other comprehensive (loss) income, net of tax	(111.3)
Other comprehensive income (loss), net of tax and noncontrolling interest adjustment	(111.3)
Restricted stock units issued, shares		0.8
Share-based compensation issued	(0.1)	$ 1.0	(1.1)				(0.1)
Share-based compensation expense	36.6		36.6				36.6
Dividends declared and paid	(7.7)			(7.7)			(7.7)
Treasury shares	(3.0)				(3.0)		(3.0)
Cumulative Effect of New Accounting Principle in Period of Adoption	33.6
Reclassification of guaranteed dividend to accrued liabilities	(3.4)						0.0	(3.4)
Reclassification From Noncontrolling Interests To Redeemable Noncontrolling Interests	(15.2)		(15.2)				(15.2)	0.0
Distributions to noncontrolling interest holders, net	(0.5)						0.0	(0.5)
Acquisitions and divestitures, net	(4.9)						0.0	(4.9)
Balance (shares) at Dec. 31, 2018		91.3
Balance at Dec. 31, 2018	(159.6)	$ 114.2	741.8	(168.3)	(570.4)	(303.7)	(186.4)	26.8
Net loss	(128.3)
Net loss	(244.6)
Net loss	(127.5)
Balance (shares) at Dec. 31, 2018		91.3
Balance at Dec. 31, 2018	$ (159.6)	$ 114.2	$ 741.8	$ (168.3)	$ (570.4)	$ (303.7)	$ (186.4)	$ 26.8
Common Shares, $1.25 Par Value	$ 1.25