CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Trade sales, services and fees, net	$ 474	$ 526	$ 1,462	$ 1,666
Cost of goods sold	454	464	1,336	1,461
Operating expenses:
Selling, general and administrative	34	45	112	138
Restructuring, impairment, and plant closing and transition costs	13	12	25	24
Other operating (income) expense, net	(1)	5	9	12
Total operating expenses	46	62	146	174
Operating (loss) income	(26)	0	(20)	31
Interest expense	(18)	(13)	(46)	(40)
Interest income	3	3	9	9
Other income	5	1	12	3
(Loss) income before income taxes	(36)	(9)	(45)	3
Income tax expense	(3)	(8)	(3)	0
Net (loss) income	(39)	(17)	(48)	3
Net income attributable to noncontrolling interests	(3)	(2)	(6)	(4)
Net loss attributable to Venator	$ (42)	$ (19)	$ (54)	$ (1)
Per Share Data:
(Loss) earnings attributable to Venator Materials PLC ordinary shareholders, basic (in dollars per share)	$ (0.39)	$ (0.18)	$ (0.51)	$ (0.01)
(Loss) earnings attributable to Venator Materials PLC ordinary shareholders, diluted (in dollars per share)	$ (0.39)	$ (0.18)	$ (0.51)	$ (0.01)