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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Valuation allowance12false 4us-gaap_UndistributedEarningsus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-13000000-13falsefalsefalse4truefalsefalse11120000001112falsefalsefalse5truefalsefalse-70000000-70falsefalsefalse6truefalsefalse11980000001198falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Undistributed earnings13false 4trox_UndistributedEarningsOfCertainForeignSubsidiariestrox_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse199000000199falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryUndistributed earnings of certain foreign subsidiaries.No definition available.false2Undistributed earnings of certain foreign subsidiaries14false 4trox_AdjustmentOnUncertainTaxPositionstrox_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse10000001falsefalsefalse9truefalsefalse10000001falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAdjustment On Uncertain Tax PositionsNo definition available.false2Tax position15false 4trox_CurrentUnrecognizedTaxBenefittrox_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7truefalsefalse10000001falsefalsefalse8truefalsefalse30000003falsefalsefalse9truefalsefalse10000001falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCurrent Unrecognized Tax BenefitNo definition available.false2Tax position, unrecognized16false 4trox_GrossUnrecognizedTaxBenefitsSubtotalBeforeInterestAndPenaltiestrox_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse40000004falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryGross Unrecognized Tax Benefits Subtotal Before Interest And PenaltiesNo definition available.false2Unrecognized tax benefits for interest17false 4trox_UnrecognizedTaxBenefitsIncludingInterestAndPenaltiestrox_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7truefalsefalse-10000000-10falsefalsefalse8truefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10truefalsefalse20000002falsefalsefalsexbrli:monetaryItemTypemonetaryUnrecognized Tax Benefits Including Interest And PenaltiesNo definition available.false2Recognizes interest and penalties related to unrecognized tax benefits18false 4trox_ReserveForUncertainTaxPositionstrox_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7truefalsefalse20000002USD$falsetruefalse8truefalsefalse40000004USD$falsetruefalse9truefalsefalse20000002USD$falsetruefalse10falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryReserve For Uncertain Tax PositionsNo definition available.false2Reserve for uncertain tax positionsfalseIncome Taxes - Additional Information (Detail) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://imetrix.edgar-online.com/taxonomy/role/DisclosureIncomeTaxesAdditionalInformation1018