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GOODWILL AND OTHER INTANGIBLE ASSETS Part 1 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	$ 4,431	$ 4,467
Acquisitions		15
Impairments recognized		(45)
Currency translation adjustments	34	(6)
Ending Balance	4,465	4,431	$ 4,467
Additives And Functional Products [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	2,377	2,410
Acquisitions		15
Impairments recognized	0	(45)	(38)
Currency translation adjustments	20	(3)
Ending Balance	2,397	2,377	2,410
Goodwill, Impaired, Accumulated Impairment Loss	106
Advanced Materials [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	1,282	1,283
Acquisitions		0
Impairments recognized		0
Currency translation adjustments	10	(1)
Ending Balance	1,292	1,282	1,283
Chemical Intermediates [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	762	764
Acquisitions		0
Impairments recognized		0
Currency translation adjustments	4	(2)
Ending Balance	766	762	764
Goodwill, Impaired, Accumulated Impairment Loss	12
Other Segments [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	10	10
Acquisitions		0
Impairments recognized		0
Currency translation adjustments	0	0
Ending Balance	10	10	$ 10
Goodwill, Impaired, Accumulated Impairment Loss	14
Crop Protection [Member] | Additives And Functional Products [Member]
Changes in carrying amount of goodwill [Roll Forward]
Beginning Balance	$ 190
Ending Balance		190
Goodwill, Impairment Loss, Net of Tax		$ 45

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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