XML 49 R47.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes - Additional information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Taxes      
Tax loss and credit carryforwards $ 59,000,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards $ 41,000,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwards  
Total income tax expense (in percentage) 25.70%us-gaap_EffectiveIncomeTaxRateContinuingOperations 25.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations 27.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Material discrete tax items reflected in the effective tax rate 0tdc_MaterialDiscreteTaxItemsReflectedInEffectiveTaxRate    
Other tax expense/ benefit 4,000,000us-gaap_OtherTaxExpenseBenefit    
Net operating loss and tax credit carryforwards 70,000,000tdc_DeferredTaxAssetsTaxCreditCarryforwardsAndNetOperatingLossCarryforwards    
Research and development tax credit carryforwards 31,000,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch    
Tax credit carryforwards recognized as deferred tax assets on balance sheet 11,000,000tdc_TaxCreditCarryforwardsRecognizedAsDeferredTaxAssetsOnBalanceSheet    
Deferred tax asset valuation allowance 20,000,000us-gaap_DeferredTaxAssetsValuationAllowance 13,000,000us-gaap_DeferredTaxAssetsValuationAllowance  
Deferred tax liability from foreign subsidiaries 1,000,000,000us-gaap_UndistributedEarningsOfForeignSubsidiaries    
Tax liability related to uncertain tax positions 36,000,000us-gaap_UnrecognizedTaxBenefits 34,000,000us-gaap_UnrecognizedTaxBenefits 31,000,000us-gaap_UnrecognizedTaxBenefits
Uncertain tax positions recognized as noncurrent liability on balance sheet 18,000,000tdc_UncertainTaxPositionsRecognizedAsNoncurrentLiabilityOnBalanceSheet    
Uncertain tax positions related to business acquisitions not recognized on balance sheet 15,000,000tdc_UncertainTaxPositionsRelatedToBusinessAcquisitionsNotRecognizedOnBalanceSheet    
Interest accruals related to uncertain tax liabilities 2,000,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued    
United States And Certain Foreign Jurisdictions      
Income Taxes      
Net operating loss carryforwards in the United States and certain foreign jurisdictions 18,000,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= tdc_UnitedStatesAndCertainForeignJurisdictionsMember		    
Operating Loss Carryforwards Expiration Year 2015    
Capital Loss Carryforward [Member]      
Income Taxes      
Tax Credit Carryforward, Amount 10,000,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_CapitalLossCarryforwardMember		    
Research Tax Credit Carryforward | State and Local Jurisdiction      
Income Taxes      
Tax Credit Carryforward, Percentage of Credits Indefinite 0.90tdc_TaxCreditCarryforwardPercentageofCreditsIndefinite
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember		    
Tax Credit Carryforward, Valuation Allowance 20,000,000us-gaap_TaxCreditCarryforwardValuationAllowance
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember		    
Current Income Taxes Payable      
Income Taxes      
Tax liability related to uncertain tax positions $ 3,000,000us-gaap_UnrecognizedTaxBenefits
/ us-gaap_BalanceSheetLocationAxis
= tdc_CurrentIncomeTaxesPayableMember