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

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- References

No definition available.

+ Details

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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

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Namespace Prefix:	trox_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant