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GOODWILL AND OTHER INTANGIBLE ASSETS Part 1 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	$ 4,527	$ 4,461
Goodwill, Acquired During Period		17
Goodwill, Written off Related to Sale of Business Unit		(1)
Goodwill, Impairment Loss	(38)
Currency translation adjustments	(22)	50
Ending Balance	4,467	4,527
Additives And Functional Products [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	2,459	2,416
Goodwill, Acquired During Period		17
Goodwill, Written off Related to Sale of Business Unit		(1)
Goodwill, Impairment Loss	(38)
Currency translation adjustments	(11)	27
Ending Balance	2,410	2,459
Goodwill, Impaired, Accumulated Impairment Loss	61	23
Advanced Materials [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	1,289	1,275
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit		0
Goodwill, Impairment Loss	0
Currency translation adjustments	(6)	14
Ending Balance	1,283	1,289
Chemical Intermediates [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	769	760
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit		0
Goodwill, Impairment Loss	0
Currency translation adjustments	(5)	9
Ending Balance	764	769
Goodwill, Impaired, Accumulated Impairment Loss	12	12
Other Segments [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	10	10
Goodwill, Acquired During Period		0
Goodwill, Written off Related to Sale of Business Unit		0
Goodwill, Impairment Loss	0
Currency translation adjustments	0	0
Ending Balance	10	10
Goodwill, Impaired, Accumulated Impairment Loss	$ 14	$ 14

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