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Restructuring, Asset-Related, and Other Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		8 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]
Employee separation charges		$ 1
Decommissioning and other charges		5
Cash payments	$ 4
ERP Implementation Abandonment [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges		1
Contract Termination Charges		4
Write-Off of Deferred Software Development Costs		11
Titanium Technologies Transformation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Announcement date of plant closing	Jul. 27, 2023
Effective date of plant closing	Aug. 01, 2023
Approved date of plant closing	Jul. 26, 2023
Decommissioning and other charges	$ 4
Cash payments	2
Titanium Technologies Transformation Plan [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			$ 123
Asset-related impairment			78
Employee separation charges			14
Contract Termination Charges			17
Decommissioning and other charges	4		14
Cash payments	15
Titanium Technologies Transformation Plan [Member] | Facility Closing [Member] | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Expected additional charges for decommissioning, dismantling and removal costs	10		10
Titanium Technologies Transformation Plan [Member] | Titanium Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Liabilities paid	4		4
Remaining outstanding liability	13		13
Contract termination liabilities	17		$ 17
Titanium Technologies Transformation Plan [Member] | Titanium Technologies [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges	7
2023 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges	4
Cash payments	2
2023 Restructuring Program [Member] | Advanced Performance Materials [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges	3
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges		1
Decommissioning and other charges		$ 5
Corporate [Member] | 2023 Restructuring Program [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation charges	$ 1

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