Share-Based Compensation - Restricted Stock Share Activity with Employees (Detail) (USD $)	6 Months Ended	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Tronox Limited Management Equity Incentive Plan [Member] \| Restricted Stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of options, beginning balance	761,065
Awards converted from Tronox Incorporated to Tronox Limited in connection with the Transaction		420,765
Number of Shares, Awards granted	780,640	160,835	341,755
Number of Shares, Awards earned	(68,258)
Number of Shares, Awards forfeited	(15,245)
Number of Shares, Ending Balance	1,458,202	581,600	761,065
Number of Shares, Outstanding awards expected to vest	1,422,910	574,716
Beginning Balance	$ 20.62
Fair Value of Awards converted connection with the Transaction		$ 16.99
Fair Value, Awards granted	$ 20.96	$ 27.39
Fair Value, Awards earned	$ 24.18
Fair Value, Awards forfeited	$ 23.86
Fair Value, Ending Balance	$ 20.60	$ 19.86	$ 20.62
Fair Value, Outstanding awards expected to vest	$ 20.57	$ 19.77
Tronox Limited Management Equity Incentive Plan [Member] \| Restricted Stock [Member] \| Employees And Directors [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of options, beginning balance		1,177,995	1,177,995
Number of Shares, Awards granted		52,915
Number of Shares, Awards earned		(810,145)
Awards converted to Tronox Limited restricted shares in connection with the Transaction		(420,765)
Beginning Balance		$ 21.48	$ 21.48
Fair Value, Awards granted		$ 24.36
Fair Value, Awards earned		$ 32.41
Awards converted to Tronox Limited restricted shares in connection with the Transaction		$ 16.99
Tronox Incorporated Management Equity Incentive Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of options, beginning balance
Awards converted to Tronox Limited restricted shares in connection with the Transaction	(517,330)	517,330
Number of Shares, Outstanding awards expected to vest		618,095
Awards converted to Tronox Limited restricted shares in connection with the Transaction	$ 24.56	$ 24.56
Successor [Member] \| Tronox Limited Management Equity Incentive Plan [Member] \| Restricted Stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of options, beginning balance
Awards converted from Tronox Incorporated to Tronox Limited in connection with the Transaction			420,765
Number of Shares, Awards granted			376,495
Number of Shares, Awards earned			(24,620)
Number of Shares, Awards forfeited			(11,575)
Number of Shares, Ending Balance			761,065
Number of Shares, Outstanding awards expected to vest			754,162
Beginning Balance
Fair Value of Awards converted connection with the Transaction			$ 16.99
Fair Value, Awards granted			$ 24.97
Fair Value, Awards earned			$ 20.87
Fair Value, Awards forfeited			$ 29.32
Fair Value, Ending Balance			$ 20.62
Fair Value, Outstanding awards expected to vest			$ 20.57
Successor [Member] \| Tronox Incorporated Management Equity Incentive Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Number of options, beginning balance		1,177,995	1,177,995
Awards converted from Tronox Incorporated to Tronox Limited in connection with the Transaction			(420,765)
Number of Shares, Awards granted			52,915
Number of Shares, Awards earned			(810,145)
Beginning Balance		$ 22.01	$ 22.01
Fair Value of Awards converted connection with the Transaction			$ 16.99
Fair Value, Awards granted			$ 24.36
Fair Value, Awards earned			$ 24.30
Fair Value, Ending Balance

Share based compensation arrangement by fair value of awards converted connection.

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Share based compensation arrangement by share awards converted connection with transaction.

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Share based compensation arrangement by share based payment award equity instruments other than options outstanding awards expected to vest weighted average grant date fair value.

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Share based compensation arrangement by share based payment award equity instruments other than options vested and expected to vest outstanding number.

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Stock options converted in connection with the transaction.

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Stock options price converted in connection with the transaction.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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