SEGMENTS AND GEOGRAPHIC REGIONS Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Net sales	$ 14,837	$ 9,712	$ 40,604	$ 27,836
Equity in earnings (losses) of nonconsolidated affiliates	249	60	751	(124)
Operating EBIT	2,886	761	7,268	1,661
Packaging & Specialty Plastics [Member]
Segment Reporting Information [Line Items]
Net sales	7,736	4,565	20,939	13,175
Equity in earnings (losses) of nonconsolidated affiliates	124	71	360	96
Operating EBIT	1,954	647	5,196	1,545
Industrial Intermediates & Infrastructure [Member]
Segment Reporting Information [Line Items]
Net sales	4,481	3,058	12,303	8,520
Equity in earnings (losses) of nonconsolidated affiliates	122	(13)	381	(202)
Operating EBIT	713	104	1,687	59
Performance Materials & Coatings [Member]
Segment Reporting Information [Line Items]
Net sales	2,526	2,002	7,114	5,922
Equity in earnings (losses) of nonconsolidated affiliates	3	1	5	4
Operating EBIT	284	75	571	264
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	94	87	248	219
Equity in earnings (losses) of nonconsolidated affiliates	0	1	5	(22)
Operating EBIT	$ (65)	$ (65)	$ (186)	$ (207)