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SEGMENT INFORMATION (Details) $ in Millions		3 Months Ended
		Mar. 31, 2019 USD ($) Segment	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Contract with Customer, Asset, Net		$ 62		$ 62
Number of Operating Segments | Segment		4
Sales [Abstract]
Sales		$ 2,380	$ 2,607
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		320	409
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	16,361		15,995
Operating Segments [Member]
Sales [Abstract]
Sales		2,380	2,607
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		363	424
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	15,111		14,913
Corporate, Non-Segment [Member]
Sales [Abstract]
Sales		0	0
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	1,250		1,082
Growth Initiatives and Businesses not Allocated to Segments [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		(27)	(26)
Pension and OPEB Costs Not Allocated to Operating Segments [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		12	21
Restructuring and acquisition integration and transaction costs [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		(28)	(2)
Other Nonoperating Income (Expense) [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		0	(8)
Additives And Functional Products [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		855	939
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		146	176
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	6,561		6,545
Advanced Materials [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		657	693
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		102	135
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	4,610		4,456
Chemical Intermediates [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		655	730
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		73	70
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	2,890		2,934
Fibers [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		213	245
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		42	43
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	1,050		$ 978
North America [Member]
Sales [Abstract]
Sales		1,000	1,100
Asia Pacific [Member]
Sales [Abstract]
Sales		553	642
EMEA [Member]
Sales [Abstract]
Sales		689	727
Latin America [Member]
Sales [Abstract]
Sales		$ 138	$ 138
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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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