SEGMENTS AND GEOGRAPHIC REGIONS Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Net sales	$ 13,885	$ 8,354	$ 25,767	$ 18,124
Equity in earnings (losses) of nonconsolidated affiliates	278	(95)	502	(184)
Operating EBIT	2,828	57	4,382	900
Packaging & Specialty Plastics [Member]
Segment Reporting Information [Line Items]
Net sales	7,121	4,001	13,203	8,610
Equity in earnings (losses) of nonconsolidated affiliates	130	20	236	25
Operating EBIT	2,014	318	3,242	898
Industrial Intermediates & Infrastructure [Member]
Segment Reporting Information [Line Items]
Net sales	4,215	2,417	7,822	5,462
Equity in earnings (losses) of nonconsolidated affiliates	144	(113)	259	(189)
Operating EBIT	648	(220)	974	(45)
Performance Materials & Coatings [Member]
Segment Reporting Information [Line Items]
Net sales	2,465	1,855	4,588	3,920
Equity in earnings (losses) of nonconsolidated affiliates	0	2	2	3
Operating EBIT	225	27	287	189
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	84	81	154	132
Equity in earnings (losses) of nonconsolidated affiliates	4	(4)	5	(23)
Operating EBIT	$ (59)	$ (68)	$ (121)	$ (142)