Supplemental Guarantor Information (Condensed Consolidation Statement of Operations) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 1,243.4	$ 983.3	$ 580.0	$ 509.6	$ 610.4	$ 589.6	$ 644.5	$ 574.8	$ 3,316.3	$ 2,419.3	$ 2,734.8
Cost of sales									2,594.6	1,767.3	2,008.6
Gross profit (loss)	230.2	197.6	155.1	138.8	171.6	150.3	170.8	159.3	721.7	652.0	726.2
Selling and administrative expense									761.2	488.2	478.4
Research, development and engineering expense									110.2	86.9	93.6
Impairment of assets	9.8								9.8	18.9	2.1
(Gain) loss on sale of assets, net									0.3	(0.6)	(12.9)
Total operating expense									881.5	593.4	561.2
Operating profit (loss)									(159.8)	58.6	165.0
Other income (expense)
Interest income									21.5	26.0	34.5
Interest expense									(101.4)	(32.5)	(31.4)
Foreign exchange gain (loss), net									(2.1)	(10.0)	(11.8)
Equity in earnings of subsidiaries									0.0	0.0	0.0
Miscellaneous, net									3.5	3.7	(1.6)
Income (loss) from continuing operations before taxes									(238.3)	45.8	154.7
Income tax (benefit) expense									(67.6)	(13.7)	47.4
Income (loss) from continuing operations, net of tax	(73.4)	(97.2)	(20.8)	20.7	31.7	18.3	19.7	(10.2)	(170.7)	59.5	107.3
Income (loss) from discontinued operations, net of tax	0.0	(4.6)	0.5	147.8	2.6	4.5	4.3	4.5	143.7	15.9	9.7
Net income (loss)	(73.4)	(101.8)	(20.3)	168.5	34.3	22.8	24.0	(5.7)	(27.0)	75.4	117.0
Net income attributable to noncontrolling interests, net of tax	4.4	0.5	0.8	0.3	1.7	1.1	1.8	(2.9)	6.0	1.7	2.6
Net income (loss) attributable to Diebold Nixdorf, Incorporated	$ (77.8)	$ (102.3)	$ (21.1)	$ 168.2	$ 32.6	$ 21.7	$ 22.2	$ (2.8)	(33.0)	73.7	114.4
Comprehensive income (loss)									(47.0)	(52.8)	(20.4)
Less: comprehensive income attributable to noncontrolling interests									9.2	3.2	1.4
Comprehensive income (loss) attributable to Diebold Nixdorf, Incorporated									(56.2)	(56.0)	(21.8)
Parent Company [Member]
Net sales									1,078.4	959.3	946.0
Cost of sales									822.6	645.7	610.0
Gross profit (loss)									255.8	313.6	336.0
Selling and administrative expense									309.2	268.5	265.9
Research, development and engineering expense									7.9	8.3	8.3
Impairment of assets									0.0	0.0	0.0
(Gain) loss on sale of assets, net									0.3	0.3	(12.0)
Total operating expense									317.4	277.1	262.2
Operating profit (loss)									(61.6)	36.5	73.8
Other income (expense)
Interest income									2.3	0.2	0.9
Interest expense									(100.0)	(30.3)	(27.3)
Foreign exchange gain (loss), net									(3.2)	4.0	(0.4)
Equity in earnings of subsidiaries									(60.5)	29.4	(459.6)
Miscellaneous, net									2.7	(9.3)	530.6
Income (loss) from continuing operations before taxes									(220.3)	30.5	118.0
Income tax (benefit) expense									(52.1)	(28.3)	13.6
Income (loss) from continuing operations, net of tax									(168.2)	58.8	104.4
Income (loss) from discontinued operations, net of tax									135.2	14.9	10.0
Net income (loss)									(33.0)	73.7	114.4
Net income attributable to noncontrolling interests, net of tax									0.0	0.0	0.0
Net income (loss) attributable to Diebold Nixdorf, Incorporated									(33.0)	73.7	114.4
Comprehensive income (loss)									(56.2)	(53.9)	(21.9)
Less: comprehensive income attributable to noncontrolling interests									0.0	0.0	0.0
Comprehensive income (loss) attributable to Diebold Nixdorf, Incorporated									(56.2)	(53.9)	(21.9)
Guarantor Subsidiaries [Member]
Net sales									85.0	171.4	217.8
Cost of sales									92.0	181.2	229.0
Gross profit (loss)									(7.0)	(9.8)	(11.2)
Selling and administrative expense									11.5	10.6	11.2
Research, development and engineering expense									45.7	59.3	64.8
Impairment of assets									5.1	9.1	0.0
(Gain) loss on sale of assets, net									(0.1)	0.0	0.9
Total operating expense									62.2	79.0	76.9
Operating profit (loss)									(69.2)	(88.8)	(88.1)
Other income (expense)
Interest income									0.6	1.0	1.7
Interest expense									(0.1)	(0.2)	(0.3)
Foreign exchange gain (loss), net									(0.1)	(0.5)	0.0
Equity in earnings of subsidiaries									0.0	0.0	0.0
Miscellaneous, net									7.8	13.2	22.4
Income (loss) from continuing operations before taxes									(61.0)	(75.3)	(64.3)
Income tax (benefit) expense									(28.6)	(12.1)	(17.8)
Income (loss) from continuing operations, net of tax									(32.4)	(63.2)	(46.5)
Income (loss) from discontinued operations, net of tax									0.0	0.0	0.0
Net income (loss)									(32.4)	(63.2)	(46.5)
Net income attributable to noncontrolling interests, net of tax									0.0	0.0	0.0
Net income (loss) attributable to Diebold Nixdorf, Incorporated									(32.4)	(63.2)	(46.5)
Comprehensive income (loss)									(32.4)	(63.2)	(46.5)
Less: comprehensive income attributable to noncontrolling interests									0.0	0.0	0.0
Comprehensive income (loss) attributable to Diebold Nixdorf, Incorporated									(32.4)	(63.2)	(46.5)
Non-Guarantor Subsidiaries [Member]
Net sales									2,236.1	1,458.4	1,788.0
Cost of sales									1,762.3	1,109.2	1,384.1
Gross profit (loss)									473.8	349.2	403.9
Selling and administrative expense									440.5	209.1	201.3
Research, development and engineering expense									56.6	19.3	20.5
Impairment of assets									4.7	9.8	2.1
(Gain) loss on sale of assets, net									0.1	(0.9)	(1.8)
Total operating expense									501.9	237.3	222.1
Operating profit (loss)									(28.1)	111.9	181.8
Other income (expense)
Interest income									18.6	24.8	31.9
Interest expense									(1.3)	(2.0)	(3.8)
Foreign exchange gain (loss), net									1.2	(13.5)	(11.4)
Equity in earnings of subsidiaries									0.0	0.0	0.0
Miscellaneous, net									(7.0)	51.3	(554.7)
Income (loss) from continuing operations before taxes									(16.6)	172.5	(356.2)
Income tax (benefit) expense									13.1	26.7	51.6
Income (loss) from continuing operations, net of tax									(29.7)	145.8	(407.8)
Income (loss) from discontinued operations, net of tax									8.5	1.0	(0.3)
Net income (loss)									(21.2)	146.8	(408.1)
Net income attributable to noncontrolling interests, net of tax									6.0	1.7	2.6
Net income (loss) attributable to Diebold Nixdorf, Incorporated									(27.2)	145.1	(410.7)
Comprehensive income (loss)									(55.7)	0.2	(488.1)
Less: comprehensive income attributable to noncontrolling interests									9.2	3.2	1.4
Comprehensive income (loss) attributable to Diebold Nixdorf, Incorporated									(64.9)	(3.0)	(489.5)
Reclassifications And Eliminations [Member]
Net sales									(83.2)	(169.8)	(217.0)
Cost of sales									(82.3)	(168.8)	(214.5)
Gross profit (loss)									(0.9)	(1.0)	(2.5)
Selling and administrative expense									0.0	0.0	0.0
Research, development and engineering expense									0.0	0.0	0.0
Impairment of assets									0.0	0.0	0.0
(Gain) loss on sale of assets, net									0.0	0.0	0.0
Total operating expense									0.0	0.0	0.0
Operating profit (loss)									(0.9)	(1.0)	(2.5)
Other income (expense)
Interest income									0.0	0.0	0.0
Interest expense									0.0	0.0	0.0
Foreign exchange gain (loss), net									0.0	0.0	0.0
Equity in earnings of subsidiaries									60.5	(29.4)	459.6
Miscellaneous, net									0.0	(51.5)	0.1
Income (loss) from continuing operations before taxes									59.6	(81.9)	457.2
Income tax (benefit) expense									0.0	0.0	0.0
Income (loss) from continuing operations, net of tax									59.6	(81.9)	457.2
Income (loss) from discontinued operations, net of tax									0.0	0.0	0.0
Net income (loss)									59.6	(81.9)	457.2
Net income attributable to noncontrolling interests, net of tax									0.0	0.0	0.0
Net income (loss) attributable to Diebold Nixdorf, Incorporated									59.6	(81.9)	457.2
Comprehensive income (loss)									97.3	64.1	536.1
Less: comprehensive income attributable to noncontrolling interests									0.0	0.0	0.0
Comprehensive income (loss) attributable to Diebold Nixdorf, Incorporated									$ 97.3	$ 64.1	$ 536.1