XML 83 R47.htm IDEA: XBRL DOCUMENT v3.3.1.900

Goodwill and Acquired Intangible Assets Gross Carrying Amount and Accumulated Amortization for Teradata Acquired Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	$ 92	$ 269
Accumulated Amortization and Currency Translation Adjustments	(70)	(133)
Intellectual property/developed technology
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	83	186
Accumulated Amortization and Currency Translation Adjustments	(63)	(95)
Customer relationships
Acquired Finite-Lived Intangible Assets
Gross Carrying Amount	3	77
Accumulated Amortization and Currency Translation Adjustments	$ (3)	$ (35)
Trademarks/trade names
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	5 years	5 years
Gross Carrying Amount	$ 1	$ 1
Accumulated Amortization and Currency Translation Adjustments	$ (1)	$ (1)
In-process research and development
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	5 years	5 years
Gross Carrying Amount	$ 5	$ 5
Accumulated Amortization and Currency Translation Adjustments	$ (3)	$ (2)
Minimum | Intellectual property/developed technology
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	1 year	1 year
Minimum | Customer relationships
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	3 years	3 years
Maximum | Intellectual property/developed technology
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	7 years	7 years
Maximum | Customer relationships
Acquired Finite-Lived Intangible Assets
Amortization Life (in Years)	10 years	10 years

X

- Definition

Finite Lived Intangible Assets Accumulated Amortization And Currency Translation Adjustment

+ References

No definition available.

+ Details

Name:	tdc_FiniteLivedIntangibleAssetsAccumulatedAmortizationAndCurrencyTranslationAdjustment
Namespace Prefix:	tdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_InProcessResearchAndDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: