DIVESTITURES (Divestiture of Ownership Interest in Dow Kokam LLC) (Details) - USD ($) $ in Millions	1 Months Ended	11 Months Ended	12 Months Ended
	Nov. 30, 2013	Nov. 21, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013		Nov. 22, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of Long-term Debt			$ 1,114	$ 747	$ 4,272
Dow Kokam LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			0	0	$ 26	[1]
Repayments of Long-term Debt	$ 75
Notes Receivable, Fair Value Disclosure							$ 75
Notes, Loans and Financing Receivable, Gross, Current			15
Notes, Loans and Financing Receivable, Net, Noncurrent			$ 46	$ 61
Dow Kokam LLC [Member] | Corporate Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of Stock, Percentage of Ownership before Transaction		67.40%
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 26

[1] See Note 5 for additional information.