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v2.4.1.9

Income Taxes Deferred Income Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred income tax assets |  |
Employee pensions and other liabilities | $ 61 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits | $ 57 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
Other balance sheet reserves and allowances | 22 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | 22 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Tax loss and credit carryforwards | 59 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards | 41 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Deferred revenue | 0 us-gaap_DeferredTaxAssetsDeferredIncome | 2 us-gaap_DeferredTaxAssetsDeferredIncome
Capitalized research and development | 0 tdc_DeferredTaxAssetsCapitalizedResearchAndDevelopment | 5 tdc_DeferredTaxAssetsCapitalizedResearchAndDevelopment
Other | 0 us-gaap_DeferredTaxAssetsOther | 1 us-gaap_DeferredTaxAssetsOther
Total deferred income tax assets | 142 us-gaap_DeferredTaxAssetsGross | 128 us-gaap_DeferredTaxAssetsGross
Valuation allowance | (20)us-gaap_DeferredTaxAssetsValuationAllowance | (13)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred income tax assets | 122 us-gaap_DeferredTaxAssetsNet | 115 us-gaap_DeferredTaxAssetsNet
Deferred income tax liabilities |  |
Intangibles and capitalized software | 102 us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware | 117 us-gaap_DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware
Property and equipment | 29 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | 29 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Deferred revenue | 17 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome | 0 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome
Other | 12 us-gaap_DeferredTaxLiabilitiesOther | 0 us-gaap_DeferredTaxLiabilitiesOther
Total deferred income tax liabilities | 160 us-gaap_DeferredTaxLiabilities | 146 us-gaap_DeferredTaxLiabilities
Total net deferred income tax liabilities | $ (38)us-gaap_DeferredTaxAssetsLiabilitiesNet | $ (31)us-gaap_DeferredTaxAssetsLiabilitiesNet

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 + Details
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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Carryforwards -URI http://asc.fasb.org/extlink&oid=6506874 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from capitalized software. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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