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SEGMENT AND REGIONAL SALES INFORMATION (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Segment	Jun. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | Segment			4
Sales [Abstract]
Sales	$ 2,363	$ 2,324	$ 4,673	$ 4,736
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	337	323	600	569
Operating Segments [Member]
Sales [Abstract]
Sales	2,358	2,323	4,664	4,734
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	398	384	744	701
Corporate, Non-Segment [Member]
Sales [Abstract]
Sales	5	1	9	2
Corporate, Non-Segment [Member] | Growth Initiatives and Businesses not Allocated to Segments [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	(44)	(45)	(112)	(96)
Corporate, Non-Segment [Member] | Pension and OPEB Costs Not Allocated to Operating Segments [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	2	(4)	4	(8)
Corporate, Non-Segment [Member] | Steam Line Incident
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	0	0	0	8
Corporate, Non-Segment [Member] | Asset impairments and restructuring charges, net
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	0	0	(11)	(16)
Corporate, Non-Segment [Member] | Other Nonoperating Income (Expense) [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	(19)	(12)	(25)	(20)
Additives And Functional Products [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	123	140	232	264
Additives And Functional Products [Member] | Operating Segments [Member]
Sales [Abstract]
Sales	718	747	1,422	1,524
Advanced Materials [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	131	99	235	185
Advanced Materials [Member] | Operating Segments [Member]
Sales [Abstract]
Sales	795	739	1,543	1,481
Chemical Intermediates [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	22	39	38	81
Chemical Intermediates [Member] | Operating Segments [Member]
Sales [Abstract]
Sales	515	514	1,038	1,103
Fibers [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes	122	106	239	171
Fibers [Member] | Operating Segments [Member]
Sales [Abstract]
Sales	$ 330	$ 323	$ 661	$ 626

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