Total number of ordinary shares that have tendered in a potential acquisition pending regulatory approval.

No definition available.

Name:	dbd_BusinessAcquisitionNumberOfOrdinarySharesTendered
Namespace Prefix:	dbd_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ordinary shares issued that have been tendered in a potential acquisition pending regulatory approval.

+ References

No definition available.

+ Details

Name:	dbd_BusinessAcquisitionPercentageTenderedOfOrdinarySharesIssued
Namespace Prefix:	dbd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Reclassification To Redeemable Noncontrolling Interests

+ References

No definition available.

+ Details

Name:	dbd_ReclassificationToRedeemableNoncontrollingInterests
Namespace Prefix:	dbd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Recurring Cash Compensation Per Share Net Of Tax

+ References

No definition available.

+ Details

Name:	dbd_RecurringCashCompensationPerShareNetOfTax
Namespace Prefix:	dbd_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

[Line Items] for Redeemable Noncontrolling Interests (Textuals) [Table]

+ References

No definition available.

+ Details

Name:	dbd_RedeemableNoncontrollingInterestsTextualsLineItems
Namespace Prefix:	dbd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Shares Repurchased Of Redeemable Noncontrolling Interest

+ References

No definition available.

+ Details

Name:	dbd_SharesRepurchasedOfRedeemableNoncontrollingInterest
Namespace Prefix:	dbd_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow during the period for redemption of redeemable noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

+ Details

Name:	us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (16)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 15
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph (12)(c)
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 3A
-Subparagraph 14
-URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764

+ Details

Name:	us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsAxis=dbd_DominationandProfitandLossTransferAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=dbd_WincorNixdorfMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Redeemable Noncontrolling Interests Redeemable Noncontrolling Interests (Textuals) (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019 USD ($) $ / shares shares	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2019 € / shares	Dec. 31, 2018 USD ($)
Redeemable Noncontrolling Interests (Textuals) [Line Items]
Redeemable noncontrolling interests	$ 99.8	$ 509.6	$ 492.1		$ 130.4
Reclassification of noncontrolling interest			$ 0.0
Payments for Repurchase of Redeemable Noncontrolling Interest	10.3	$ 0.0
Domination and Profit and Loss Transfer Agreement [Member] \| Diebold Nixdorf AG [Member]
Redeemable Noncontrolling Interests (Textuals) [Line Items]
Redeemable noncontrolling interests	$ 87.4				$ 99.1
Business Acquisition, Share Price \| (per share)	$ 55.02			€ 55.02
Recurring Cash Compensation Per Share Net Of Tax \| (per share)	$ 2.82			€ 2.82
Shares Repurchased Of Redeemable Noncontrolling Interest \| shares	0.2
Business Acquisition, Number Of Ordinary Shares Tendered \| shares	28.4
Business Acquisition, Percentage Tendered Of Ordinary Shares Issued	95.30%