XML 119 R74.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Employee Benefit Plans Schedule of Pension Plan Assets at Fair Value (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Money market funds | $ 1 | $ 3 |
Equity funds | 21 | 19 |
Bond/fixed-income funds | 27 | 27 |
Real-estate indirect investments | 4 | 4 |
Insurance contracts | 11 | 10 | $ 11
Total Assets at fair value | 64 | 63 |
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Money market funds | 0 | 0 |
Equity funds | 0 | 0 |
Bond/fixed-income funds | 0 | 0 |
Real-estate indirect investments | 0 | 0 |
Insurance contracts | 0 | 0 |
Total Assets at fair value | 0 | 0 |
Significant Other Observable Inputs (Level 2) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Money market funds | 1 | 3 |
Equity funds | 21 | 19 |
Bond/fixed-income funds | 27 | 27 |
Real-estate indirect investments | 4 | 4 |
Insurance contracts | 0 | 0 |
Total Assets at fair value | 53 | 53 |
Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Money market funds | 0 | 0 |
Equity funds | 0 | 0 |
Bond/fixed-income funds | 0 | 0 |
Real-estate indirect investments | 0 | 0 |
Insurance contracts | 11 | 10 |
Total Assets at fair value | $ 11 | $ 10 |

X
- Definition Bond fixed income pension plan assets fair value. + References No definition available. + Details
Name: | tdc_BondFixedIncomePensionPlanAssetsFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cash and cash equivalents and money market funds pension plan assets fair value. + References No definition available. + Details
Name: | tdc_CashAndCashEquivalentsAndMoneyMarketFundsPensionPlanAssetsFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Equity funds pension plan assets fair value. + References No definition available. + Details
Name: | tdc_EquityFundsPensionPlanAssetsFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Insurance contracts pension plan assets fair value. + References No definition available. + Details
Name: | tdc_InsuranceContractsPensionPlanAssetsFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Real estate indirect investment pension plan assets fair value. + References No definition available. + Details
Name: | tdc_RealEstateIndirectInvestmentPensionPlanAssetsFairValue
Namespace Prefix: | tdc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=64937038&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6749337 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Assets -URI http://asc.fasb.org/extlink&oid=6520858 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |