RESTRUCTURING, GOODWILL IMPAIRMENT AND ASSET RELATED CHARGES - NET (2016 Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring, goodwill impairment and asset related charges - net	$ 2,851	$ 147	$ 65	$ 156	$ 46	$ 48	$ 40	$ 87	$ 3,219	$ 221	$ 2,739
Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, goodwill impairment and asset related charges - net									1,076	21	1,578
Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, goodwill impairment and asset related charges - net									1,175	11	17
Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, goodwill impairment and asset related charges - net									439	46	716
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, goodwill impairment and asset related charges - net									$ 529	$ 143	$ 428