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Guarantor Condensed Consolidating Financial Statements (Details) | Mar. 31, 2017
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Guarantor Condensed Consolidating Financial Statements [Abstract] |
Guarantor subsidiaries owned by parent company | 100.00%

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- References No definition available. + Details
Name: | trox_GuarantorCondensedConsolidatingFinancialStatementsAbstract
Namespace Prefix: | trox_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of guarantor subsidiaries ownership by parent company. + References No definition available. + Details
Name: | trox_GuarantorSubsidiariesOwnershipPercentageByParent
Namespace Prefix: | trox_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant