NONCONSOLIDATED AFFILIATES (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates	$ 1,404	$ 2,045	$ 1,327	$ 1,404
Other noncurrent obligations		0	(169)
Net investment in nonconsolidated affiliates		2,045	1,158
Dividends from nonconsolidated affiliates		324	425	1,020
Restructuring, goodwill impairment and asset related charges - net		6	708	3,219
Increase (Decrease) in Notes Receivable, Related Parties			333	473
Packaging & Specialty Plastics [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates	675	1,230	661	675
Restructuring, goodwill impairment and asset related charges - net		8	30	439
Industrial Intermediates & Infrastructure [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates	568	670	531	568
Restructuring, goodwill impairment and asset related charges - net		1	22	1,175
Corporate Segment [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates	$ 60	34	27	60
Restructuring, goodwill impairment and asset related charges - net		(13)	464	$ 529
Exclusive of additional differences for EQUATE, Sadara and AFSI [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		55	55
Sadara Chemical Company
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates		416
Other noncurrent obligations			22
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		$ 1,541	$ 1,618
Ownership percentage	35.00%	35.00%	35.00%	35.00%
Restructuring, goodwill impairment and asset related charges - net	$ 1,755
Equity Method Investment, Conversion of Notes Receivable to Equity				$ 380
Sadara Chemical Company | Equity Method Investee
Schedule of Equity Method Investments [Line Items]
Noncurrent receivables, Balance Due From Nonconsolidated Affiliates		$ 0	$ 0
Sadara Chemical Company | Packaging & Specialty Plastics [Member]
Schedule of Equity Method Investments [Line Items]
Restructuring, goodwill impairment and asset related charges - net	370
Sadara Chemical Company | Industrial Intermediates & Infrastructure [Member]
Schedule of Equity Method Investments [Line Items]
Restructuring, goodwill impairment and asset related charges - net	1,168
Sadara Chemical Company | Corporate Segment [Member]
Schedule of Equity Method Investments [Line Items]
Restructuring, goodwill impairment and asset related charges - net	$ 217
EQUATE Petrochemical Company K.S.C.
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates		115
Other noncurrent obligations			147
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		$ 458	$ 475
Ownership percentage	42.50%	42.50%	42.50%	42.50%
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity, Portion Amortized Over Remaining Useful Life		$ 140	$ 155
AgroFresh
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates		0	0
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity		$ 96	$ 108
Ownership percentage		40.00%	40.00%