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Net Sales - Summary of Disaggregation of Net Sales by Geographical Region and Segment and Product Group (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	$ 1,350	$ 1,536
Topic 606 [Member] | Transferred at a Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	1,350	1,536
Topic 606 [Member] | Transferred at a Point in Time [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	588	632
Topic 606 [Member] | Transferred at a Point in Time [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	449	486
Topic 606 [Member] | Transferred at a Point in Time [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	299	388
Topic 606 [Member] | Transferred at a Point in Time [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	14	30
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	642	720
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	246	262
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	266	284
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	121	152
Topic 606 [Member] | Transferred at a Point in Time [Member] | North America [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	9	22
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	280	314
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	124	133
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	92	100
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	62	76
Topic 606 [Member] | Transferred at a Point in Time [Member] | Europe, the Middle East, and Africa [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	2	5
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	137	154
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	74	90
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	52	49
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	11	14
Topic 606 [Member] | Transferred at a Point in Time [Member] | Latin America [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales		1
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	291	348
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	144	147
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	39	53
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	105	146
Topic 606 [Member] | Transferred at a Point in Time [Member] | Asia Pacific [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	3	2
Topic 606 [Member] | Transferred at a Point in Time [Member] | Titanium Dioxide and Other Minerals [Member] | Titanium Technologies [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	588	632
Topic 606 [Member] | Transferred at a Point in Time [Member] | Refrigerants [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	373	385
Topic 606 [Member] | Transferred at a Point in Time [Member] | Foam, Propellants, and Other [Member] | Thermal & Specialized Solutions [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	76	101
Topic 606 [Member] | Transferred at a Point in Time [Member] | Advanced Materials [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	186	244
Topic 606 [Member] | Transferred at a Point in Time [Member] | Performance Solutions [Member] | Advanced Performance Materials [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	113	144
Topic 606 [Member] | Transferred at a Point in Time [Member] | Performance Chemicals and Intermediates [Member] | Other Segment [Member]
Disaggregation Of Revenue [Line Items]
Disaggregation of Net Sales	$ 14	$ 30

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