CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (39)	$ (17)	$ (48)	$ 3
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	46	(34)	29	(36)
Pension and other postretirement benefits adjustments	3	4	10	12
Hedging instruments	(10)	5	(1)	10
Total other comprehensive income (loss), net of tax	39	(25)	38	(14)
Comprehensive loss	0	(42)	(10)	(11)
Comprehensive income attributable to noncontrolling interest	(3)	(2)	(6)	(4)
Comprehensive loss attributable to Venator	$ (3)	$ (44)	$ (16)	$ (15)