NONCONTROLLING INTERESTS - Summary of Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at beginning of period	$ 572	$ 570	$ 569	$ 1,608
Net income attributable to noncontrolling interests	7	5	20	90
Distributions to noncontrolling interests	(38)	(6)	(48)	(18)
Cumulative translation adjustments	4	(2)	(1)	14
Spin-off of Dow and Corteva	0	0	0	(1,124)
Other	14	1	19	(2)
Balance at end of period	$ 559	$ 568	$ 559	$ 568