Acquisitions (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) shares	Mar. 31, 2017 USD ($)	Dec. 31, 2016 € / shares	Aug. 15, 2016 USD ($) shares	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Payments for acquisition, net of cash acquired				$ 2.4	$ 0.0
Payments for Repurchase of Redeemable Noncontrolling Interest				2.6
Goodwill	$ 1,082.4	$ 998.3		1,082.4		$ 998.3					$ 161.5
Reclassification of noncontrolling interest				386.7
Noncontrolling interests	37.5	433.4	$ 23.7	37.5	23.7	433.4	$ 34.8			$ 23.5	$ 23.1
Total net sales	1,133.9		580.0	2,236.7	1,089.6
Income (loss) from continuing operations before taxes	(59.9)		(35.7)	(134.7)	(15.8)
Net income (loss) attributable to Diebold Nixdorf, Incorporated	(30.6)		(21.1)	(89.4)	147.1
Cost of sales	896.1		424.9	1,756.4	795.7
Selling and administrative expense	236.8		127.3	483.8	252.9
2024 Senior Notes [Member]
Business Acquisition [Line Items]
Senior Notes	$ 400.0			$ 400.0
Stated interest rate	8.50%			8.50%
Measurement Period December31 To June30 [Member]
Business Acquisition [Line Items]
Total net sales				$ 0.4
Cost of sales				0.9
Selling and administrative expense				0.6
Visio Objekt GmbH [Member]
Business Acquisition [Line Items]
Purchase price consideration	$ 2.4
Diebold Nixdorf AG [Member]
Business Acquisition [Line Items]
Number of ordinary shares acquired | shares									22.9
Percentage acquired of ordinary shares issued									69.20%
Percentage acquired of ordinary shares outstanding									76.70%
Purchase price consideration	1,155.0	1,155.0				$ 1,265.7
Common shares issued for acquisition | shares						9.9
Payments for acquisitions, gross						$ 995.3
Cash acquired from acquisition						110.7
Payments for acquisition, net of cash acquired						884.6
Common shares issued for acquisition		279.7				279.7
Other consideration transferred for acquisition						(9.3)
Trade receivables	474.1	474.1		474.1		474.1
Inventories	478.5	487.2		478.5		487.2
Prepaid expenses	39.3	39.3		39.3		39.3
Current assets held for sale	106.6	106.6		106.6		106.6
Other current assets	79.9	79.9		79.9		79.9
Property, plant and equipment	247.1	247.1		247.1		247.1
Intangible assets	808.8	802.1		808.8		802.1
Deferred income taxes	111.8	109.7		111.8		109.7
Other assets	27.0	27.0		27.0		27.0
Total assets acquired	2,373.1	2,373.0		2,373.1		2,373.0
Notes payable	159.8	159.8		159.8		159.8
Accounts payable	321.5	321.5		321.5		321.5
Deferred revenue	151.8	158.0		151.8		158.0
Payroll and other benefits liabilities	191.6	191.6		191.6		191.6
Current liabilities held for sale	56.6	56.6		56.6		56.6
Other current liabilities	202.2	196.3		202.2		196.3
Pensions and other benefits	103.2	103.2		103.2		103.2
Other noncurrent liabilities	465.5	458.9		465.5		458.9
Total liabilities assumed	1,652.2	1,645.9		1,652.2		1,645.9
Redeemable noncontrolling interest	(46.8)	(46.8)		(46.8)		(46.8)
Fair value of noncontrolling interest	(407.9)	(407.9)		(407.9)		(407.9)
Total identifiable net assets acquired, including noncontrolling interest	266.2	272.4		266.2		272.4
Goodwill	888.8	882.6		888.8		882.6
Acquired finite-lived intangible assets									$ 808.8
Noncontrolling interests		$ 21.2				$ 21.2
Total net sales	635.8			1,259.4
Income (loss) from continuing operations before taxes	(6.5)			(38.4)
Net income (loss) attributable to Diebold Nixdorf, Incorporated	(14.7)			(39.1)
Purchase accounting adjustment related to acquired deferred revenue	10.3			20.7
Purchase accounting adjustment related to amortization of acquired intangible assets	33.4			65.2
Purchase accounting adjustment related to depreciation of acquired assets	1.6			3.2
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory				0.9
Acquisition related costs			$ 14.9
Net sales - pro forma				1,290.8	2,457.9
Business Combination Pro Forma Gross Profit				322.5	619.1
Business Combination Pro Forma Operating Profit				42.8	80.0
Net income (loss) attributable to Diebold, Incorporated - pro forma				$ (14.1)	$ 166.9
Net income (loss) attributable to Diebold, Incorporated per share - basic - pro forma | $ / shares				$ (0.19)	$ 2.22
Net income (loss) attributable to Diebold, Incorporated per share - diluted - pro forma | $ / shares				$ (0.19)	$ 2.21
Basic weighted-average shares outstanding - pro forma | shares				75.1	75.1
Diluted weighted-average shares outstanding - pro forma | shares				75.1	75.6
Diebold Nixdorf AG [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets									30.1
Acquired finite-lived intangible assets, weighted average useful life				3 years
Diebold Nixdorf AG [Member] | Developed Technology Rights [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets									107.2
Acquired finite-lived intangible assets, weighted average useful life				4 years
Diebold Nixdorf AG [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets									665.2
Acquired finite-lived intangible assets, weighted average useful life				9 years 6 months
Diebold Nixdorf AG [Member] | Other intangibles [Member]
Business Acquisition [Line Items]
Acquired finite-lived intangible assets									$ 6.3
Diebold Nixdorf AG [Member] | Domination and Profit and Loss Transfer Agreement [Member]
Business Acquisition [Line Items]
Cash portion of tender offer per share | € / shares								€ 55.02
Recurring cash compensation per share | € / shares								3.13
Recurring cash compensation per share net of tax | € / shares								€ 2.82
Diebold Nixdorf AG [Member] | Measurement Period December31 To June30 [Member]
Business Acquisition [Line Items]
Purchase price consideration	0.0
Trade receivables	0.0			$ 0.0
Inventories	(8.7)			(8.7)
Prepaid expenses	0.0			0.0
Current assets held for sale	0.0			0.0
Other current assets	0.0			0.0
Property, plant and equipment	0.0			0.0
Intangible assets	6.7			6.7
Deferred income taxes	2.1			2.1
Other assets	0.0			0.0
Total assets acquired	0.1			0.1
Notes payable	0.0			0.0
Accounts payable	0.0			0.0
Deferred revenue	(6.2)			(6.2)
Payroll and other benefits liabilities	0.0			0.0
Current liabilities held for sale	0.0			0.0
Other current liabilities	5.9			5.9
Pensions and other benefits	0.0			0.0
Other noncurrent liabilities	6.6			6.6
Total liabilities assumed	6.3			6.3
Redeemable noncontrolling interest	0.0			0.0
Fair value of noncontrolling interest	0.0			0.0
Total identifiable net assets acquired, including noncontrolling interest	(6.2)			(6.2)
Goodwill	$ 6.2			$ 6.2