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- Definition

Share-Based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Performance Period

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- 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.

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Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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Share-based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
	May 08, 2024	Jun. 24, 2020	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Mar. 27, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of authorized shares, not disclosed			true
Restricted Share Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			3,644,821
Granted (in dollars per share)			$ 7.56	$ 16.69	$ 16.33
Unrecognized compensation expense related to nonvested restricted shares and nonvested RSUs, adjusted for estimated forfeitures			$ 26
Weighted average period of recognition for unrecognized compensation expense (in years)			1 year 10 months 24 days
Total fair value of restricted shares and RSUs vested			$ 13	$ 23	$ 27
Restricted Stock Units (RSUs), Time-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)			3 years
Restricted Stock Units (RSUs), Time-Based Awards \| Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			1,896,879
Restricted Stock Units (RSUs), Time-Based Awards \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			250,724
Restricted Stock Units (RSUs), Performance-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			1,497,218
Granted (in dollars per share)				$ 21.70	$ 22.42
Restricted Stock Units (RSUs), Performance-Based Awards \| Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			748,609
Award performance Period (in years)			3 years
Granted (in dollars per share)			$ 8.94
Restricted Stock Units (RSUs), Performance-Based Awards \| Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			748,609
Tronox Holdings Plc Amended And Restated Management Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized	3,200,000	8,000,000
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, awards granted (in shares)						20,781,225