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Accumulated Other Comprehensive Loss Attributable to Tronox Holdings plc and Other Equity Items - Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance $ 2,042 $ 1,871 $ 916
Acquisition of noncontrolling interest   0 (3)
Ending balance 2,403 2,042 1,871
AOCI Attributable to Parent      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (738) (610) (606)
Other comprehensive income (loss) (24) (66) (12)
Amounts reclassified from accumulated other comprehensive loss (6) (28) 8
Acquisition of noncontrolling interest   (34)  
Ending balance (768) (738) (610)
Cumulative Translation Adjustment      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (628) (491) (503)
Other comprehensive income (loss) (82) (103) 12
Amounts reclassified from accumulated other comprehensive loss 0 0 0
Acquisition of noncontrolling interest   (34)  
Ending balance (710) (628) (491)
Pension Liability Adjustment      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (100) (120) (104)
Other comprehensive income (loss) 5 16 (20)
Amounts reclassified from accumulated other comprehensive loss 17 4 4
Acquisition of noncontrolling interest   0  
Ending balance (78) (100) (120)
Unrealized Gains (losses) on Derivatives      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Beginning balance (10) 1 1
Other comprehensive income (loss) 53 21 (4)
Amounts reclassified from accumulated other comprehensive loss (23) (32) 4
Acquisition of noncontrolling interest   0  
Ending balance $ 20 $ (10) $ 1