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Share-based Compensation - Narrative (Details)
12 Months Ended
Jun. 24, 2020
shares
Dec. 31, 2022
USD ($)
performance_period
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
Mar. 27, 2019
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense | $     $ 3,000,000    
Accelerated cost | $     $ 2,000,000    
Options exercised (in shares)   13,881 424,832    
Intrinsic value of options exercised | $   $ 1,000,000 $ 2,000,000    
Cash received from exercise of stock options | $   1,000,000 8,000,000 $ 0  
Unrecognized compensation expense related to options, adjusted for estimated forfeitures | $   $ 0 $ 0 $ 0  
Restricted Share Units (RSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   2,313,346      
Granted (in dollars per share) | $ / shares   $ 19.47 $ 20.91 $ 8.89  
RSU shares granted and vested immediately (in shares)   1,115,249      
Unrecognized compensation expense related to nonvested restricted shares and nonvested RSUs, adjusted for estimated forfeitures | $   $ 27,000,000      
Weighted average period of recognition for unrecognized compensation expense   1 year 7 months 6 days      
Total fair value of restricted shares and RSUs vested | $   $ 44,000,000 $ 41,000,000 $ 30,000,000  
Restricted Stock Units (RSUs), Time-Based Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period   3 years      
Restricted Stock Units (RSUs), Time-Based Awards | Management          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   582,136      
Restricted Stock Units (RSUs), Time-Based Awards | Director          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   68,296      
Restricted Stock Units (RSUs), Performance-Based Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (in shares)   533,416      
Granted (in dollars per share) | $ / shares     $ 29.07 $ 10.00  
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)   266,708      
Award performance Period   3 years      
Granted (in dollars per share) | $ / shares   $ 34.41      
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)   266,708      
Number of performance periods | performance_period   3      
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 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