Derivatives and Hedging Instruments - Derivative Fair Values (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	$ 9us-gaap_DerivativeAssets	$ 1us-gaap_DerivativeAssets
Derivative Liabilities, Fair Value	9us-gaap_DerivativeLiabilities	11us-gaap_DerivativeLiabilities
Interest Rate Swap Ending Notional	341ncr_InterestRateSwapEndingNotional
Derivatives designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	8	0
Derivative Liabilities, Fair Value	7	6
Derivatives not designated as hedging instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value	1	1
Derivative Liabilities, Fair Value	2	5
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(3)
Interest Rate Swap [Member] \| Derivatives designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	0	0
Derivative Assets, Fair Value	0	0
Interest Rate Swap [Member] \| Derivatives designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	4
Interest Rate Swap [Member] \| Derivatives designated as hedging instrument [Member] \| Other current liabilities and other liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	448	462
Derivative Liabilities, Fair Value	6	6
Interest Rate Swap [Member] \| Derivatives designated as hedging instrument [Member] \| Other noncurrent liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	2
Foreign Exchange Derivative [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	6
Foreign Exchange Derivative [Member] \| Derivatives designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	165
Derivative Assets, Fair Value	8
Foreign Exchange Derivative [Member] \| Derivatives designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	51
Derivative Liabilities, Fair Value	1
Foreign Exchange Derivative [Member] \| Derivatives not designated as hedging instrument [Member] \| Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Notional Amount	98	186
Derivative Assets, Fair Value	1	1
Foreign Exchange Derivative [Member] \| Derivatives not designated as hedging instrument [Member] \| Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Notional Amount	321	330
Derivative Liabilities, Fair Value	$ 2	$ 5

Interest Rate Swap Ending Notional

No definition available.

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- Definition

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14

-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 14A

-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80784-113994

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- Definition

Nominal or face amount used to calculate payments on the derivative asset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

+ Details

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 20

-Section 55

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226008-175313

+ Details

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Period Type:	instant

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

+ Details

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- Details

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- Details

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- Details

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- Details

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