Anticipated annual savings from restructuring plan

No definition available.

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Namespace Prefix:	ncr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Restructuring and other asset-related charges

+ References

No definition available.

+ Details

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Namespace Prefix:	ncr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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

- Details

Name:	us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

+ Details

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

- Definition

Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

+ References

+ Details

Name:	us-gaap_RestructuringReservePeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Restructuring Plan (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	$ 130
Anticipated annual savings from restructuring plan	90
Restructuring Reserve	58	58	0
Restructuring Reserve, Period Increase (Decrease)		67
Payments for Restructuring		(9)
Inventory related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	55
Inventory related charges [Member] \| Cost of Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	46
Inventory related charges [Member] \| Cost of Products [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	9
Severance and other employee related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	65
Asset related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	8
Asset related charges [Member] \| Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	3
Asset related charges [Member] \| Restructuring related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	5
Other exit costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	2
Discrete charge under ASC 712 [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(7)
Discrete charge under ASC 712 [Member] \| Severance and other employee related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	61
Severance charge under ASC 420 [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(2)
Severance charge under ASC 420 [Member] \| Severance and other employee related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	$ 4