INCOME TAXES (Schedule of Domestic and Foreign Components of Income Before Income Taxes and Tax Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosures [Abstract]
Income (Loss) Before Income Taxes, Domestic	$ 1,254	$ 896	$ 1,077	[1]
Income (Loss) Before Income Taxes, Foreign	(11)	(5)	(10)
Income (Loss) Before Income Taxes	(1,243)	(891)	(1,067)
Taxes at U.S. statutory rate	435	312	374
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	8	26	7
Benefit of dividend income from investments in related companies	0	0	(6)
Income Tax Rate Reconciliation, Audit settlement and court case	0	0	20
Unrecognized tax benefits	24	0	(30)
Federal tax accrual adjustments	(7)	(14)	(5)
State and local tax impact	(11)	42	(38)
Other - net	2	(10)	11
Total tax provision (credit)	$ 435	$ 304	$ 319
Effective tax rate	35.00%	34.10%	29.90%

[1] In 2013, the domestic component of "Income Before Income Taxes" included a gain of $368 million for the sale of Dow's Polypropylene Licensing and Catalysts business.