DIVESTITURES DIVESTITURES (Polypropylene Licensing and Catalysts Business) (Details) - Polypropylene Licensing and Catalyst Business [Member] - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	[1]	Dec. 31, 2014	[1]	Dec. 31, 2013	[1]	Dec. 02, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net									$ 4
Disposal Group, Including Discontinued Operation, Inventory									19
Assets divested, net property									7
Assets, total assets divested									$ 30
Proceeds from Divestiture of Businesses		$ 398	$ 0		$ 4		$ 368
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 4	368
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Net of Tax	$ 3	$ 233

[1] See Note 4 for additional information.