CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Net sales	$ 390	$ 442
Cost of goods sold	307	327
Gross profit	83	115
Selling, general and administrative expenses	67	76
Impairment loss	0	25
Income from operations	16	14
Interest expense	(49)	(49)
Interest income	9	8
Loss on extinguishment of debt	(2)	0
Other expense, net	(2)	(9)
Loss before income taxes	(28)	(36)
Income tax provision	(2)	(5)
Net loss	(30)	(41)
Net income attributable to noncontrolling interest	4	3
Net loss attributable to Tronox Holdings plc	$ (34)	$ (44)
Net loss per share, basic and diluted (in dollars per share)	$ (0.27)	$ (0.36)
Weighted average shares outstanding, basic and diluted (in shares)	124,296	122,327