Debt Instrument, Percentage Of Debt Down Payment

No definition available.

Name:	trox_DebtInstrumentPercentageOfDebtDownPayment
Namespace Prefix:	trox_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Monthly Installments Period

+ References

No definition available.

+ Details

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Namespace Prefix:	trox_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

Debt - Narrative (Details) R in Millions, $ in Millions			1 Months Ended
Debt - Narrative (Details) R in Millions, $ in Millions	Aug. 06, 2026 USD ($)	Aug. 06, 2026 ZAR (R)	Jul. 31, 2026 USD ($)	Jul. 31, 2026 ZAR (R)	Aug. 31, 2025 USD ($)	Jul. 31, 2026 ZAR (R)	Jun. 30, 2026
RMB Revolving Credit Facility \| Subsequent Event
Line of Credit Facility [Line Items]
Repayments of debt			$ 18	R 300
SEB Credit Facility
Line of Credit Facility [Line Items]
Annual Interest Rate							4.90%
SEB Credit Facility \| Subsequent Event \| Line of Credit
Line of Credit Facility [Line Items]
Aggregate principal amount			$ 13			R 50
Annual Interest Rate			5.63%			5.63%
Proceeds from issuance of debt	$ 13	R 50
Short-Term Insurance Premium Financing Agreement
Line of Credit Facility [Line Items]
Aggregate principal amount					$ 30
Insurance premium down payment, (in percent)					35.00%
Monthly installments period					8 months
Annual Interest Rate					8.00%