NONCONTROLLING INTERESTS Noncontrolling Interests (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at Jan 1	$ 1,138	$ 1,186
Transfer of Business Under Common Control	(1,935)	240	$ (6)
Balance at Dec 31	553	1,138	1,186
Propylene Oxide Joint Venture [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Adjustments to Additional Paid in Capital, Other	38
Discontinued Operations [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Distributions to noncontrolling interests	(7)	(37)	(28)
Noncontrolling Interests
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at Jan 1	1,138	1,186	1,242
Net income attributable to noncontrolling interests - continuing operations	74	102	102
Net income attributable to noncontrolling interests - discontinued operations	13	32	28
Distributions to noncontrolling interests	(77)	(145)	(109)
Transfer of Business Under Common Control	353	0	0
Purchase of noncontrolling interests 3	254	0	0
Deconsolidation of noncontrolling interests	0	0	(119)
Cumulative translation adjustments	12	(39)	41
Other	0	2	1
Balance at Dec 31	553	1,138	1,186
Dividends Paid to a Joint Venture Not Included in Distributions to NCI	$ 7	$ 27	$ 20