NONCONTROLLING INTERESTS Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Noncontrolling Interest [Line Items]
Balance at beginning of period				$ 553
Net income attributable to noncontrolling interests - continuing operations	$ 24	$ 14		51	$ 61
Net income attributable to noncontrolling interests - discontinued operations	0	0		0	(13)
Settlements and transfers related to separation from DowDuPont Inc.				0	(1,935)
Payments to Noncontrolling Interests				0	131
Balance at end of period	578	587	$ 587	578	587
Dividends Paid to a Joint Venture Not Included in Distributions to NCI				7
Propylene Oxide Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Noncontrolling Interest [Line Items]
Payments to Noncontrolling Interests			131
Adjustments to Additional Paid in Capital, Other					38
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Balance at beginning of period	560	589		553	1,138
Net income attributable to noncontrolling interests - continuing operations	24	14		51	61
Net income attributable to noncontrolling interests - discontinued operations	0	0		0	13
Distributions to noncontrolling interests 1	0	(9)		(12)	(23)
Settlements and transfers related to separation from DowDuPont Inc.	0	0		0	(353)
Payments to Noncontrolling Interests	0	0		0	(254)
Noncontrolling Interest, Decrease from Deconsolidation	(7)	0		(7)	0
Cumulative translation adjustments	2	(5)		(6)	8
Other	(1)	(2)		(1)	(3)
Balance at end of period	$ 578	$ 587	$ 587	$ 578	587
Noncontrolling Interest [Member] | Discontinued Operations [Member]
Noncontrolling Interest [Line Items]
Distributions to noncontrolling interests 1					$ 7