v3.25.1
Accumulated Other Comprehensive Loss Attributable to Tronox Holdings plc and Other Equity Items - Schedule of Changes in Accumulated Other Comprehensive Loss by Component (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance $ 1,791 $ 1,980
Ending balance 1,706 1,925
Accumulated Other Comprehensive Loss    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (880) (814)
Other comprehensive income (loss) 38 (30)
Amounts reclassified from accumulated other comprehensive loss 0 (1)
Ending balance (842) (845)
Cumulative Translation Adjustment    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (801) (729)
Other comprehensive income (loss) 49 (40)
Amounts reclassified from accumulated other comprehensive loss 0 0
Ending balance (752) (769)
Pension Liability Adjustment    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance (84) (92)
Other comprehensive income (loss) 0 0
Amounts reclassified from accumulated other comprehensive loss 0 0
Ending balance (84) (92)
Unrealized Gains (Losses) on Hedges    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]    
Beginning balance 5 7
Other comprehensive income (loss) (11) 10
Amounts reclassified from accumulated other comprehensive loss 0 (1)
Ending balance $ (6) $ 16