SEGMENTS AND GEOGRAPHIC REGIONS Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 11,882	$ 9,770
Equity in earnings (losses) of nonconsolidated affiliates	224	(89)
Operating EBIT	1,554	843
Packaging & Specialty Plastics [Member]
Segment Reporting Information [Line Items]
Net sales	6,082	4,609
Equity in earnings (losses) of nonconsolidated affiliates	106	5
Operating EBIT	1,228	580
Industrial Intermediates & Infrastructure [Member]
Segment Reporting Information [Line Items]
Net sales	3,607	3,045
Equity in earnings (losses) of nonconsolidated affiliates	115	(76)
Operating EBIT	326	175
Performance Materials & Coatings [Member]
Segment Reporting Information [Line Items]
Net sales	2,123	2,065
Equity in earnings (losses) of nonconsolidated affiliates	2	1
Operating EBIT	62	162
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	70	51
Equity in earnings (losses) of nonconsolidated affiliates	1	(19)
Operating EBIT	$ (62)	$ (74)