Debt Instrument, Percentage Of Debt Down Payment

No definition available.

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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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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

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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+ Details

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Balance Type:	debit
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

Name:	us-gaap_DebtInstrumentAxis=trox_ShortTermInsurancePremiumFinancingAgreementMember
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	Oct. 31, 2026 USD ($)	Oct. 31, 2026 ZAR (R)	Sep. 30, 2026 USD ($)	Aug. 31, 2026 USD ($)	Aug. 31, 2026 ZAR (R)	Jul. 31, 2026 USD ($)	Jul. 31, 2026 ZAR (R)
RMB Revolving Credit Facility \| Line of Credit \| Subsequent Event
Line of Credit Facility [Line Items]
Proceeds from draw down	$ 24	R 400
SEB Credit Facility
Line of Credit Facility [Line Items]
Annual Interest Rate			5.60%
SEB Credit Facility \| 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			$ 26
Annual Interest Rate			7.60%
Insurance premium down payment, (in percent)			35.00%
Monthly installments period			8 months