v3.26.1
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 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance $ 1,321 $ 1,706 $ 1,449 $ 1,791
Ending balance 1,191 1,679 1,191 1,679
Accumulated Other Comprehensive Loss        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (741) (842) (717) (880)
Other comprehensive income (loss) 47 72 22 110
Amounts reclassified from accumulated other comprehensive loss   1 1 1
Ending balance (694) (769) (694) (769)
Cumulative Translation Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (655) (752) (627) (801)
Other comprehensive income (loss) 35 66 7 115
Amounts reclassified from accumulated other comprehensive loss   0 0 0
Ending balance (620) (686) (620) (686)
Pension Liability Adjustment        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (84) (84) (83) (84)
Other comprehensive income (loss) 0 0 (2) 0
Amounts reclassified from accumulated other comprehensive loss   1 1 1
Ending balance (84) (83) (84) (83)
Unrealized Gains (Losses) on Hedges        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (2) (6) (7) 5
Other comprehensive income (loss) 12 6 17 (5)
Amounts reclassified from accumulated other comprehensive loss   0 0 0
Ending balance $ 10 $ 0 $ 10 $ 0