GOODWILL AND OTHER INTANGIBLE ASSETS GOODWILL AND OTHER INTANGIBLE ASSETS (Annual Goodwill Impairment Test) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) ReportingUnits	Dec. 31, 2016 USD ($) ReportingUnits	Dec. 31, 2015 USD ($) ReportingUnits
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss	$ 1,920	$ 1,920	$ 429
Number of Reporting Units, Quantitative Testing | ReportingUnits		11	3	3
Goodwill, Impairment Loss		$ (1,491)
Goodwill	13,938	13,938	$ 15,272	$ 12,154
Coatings and Performance Monomers [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	(1,491)	(1,491)
Goodwill	$ 1,071	$ 1,071