INCOME TAXES (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Note [Line Items]
Operating loss carryforwards	$ 1,035				$ 889	$ 1,035
Tax credit carryforwards, net of uncertain tax positions	5				5	5
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	50	$ 48			41	50	$ 48
Valuation allowance, deferred tax assets	53				$ 28	$ 53
Effective tax rate					35.00%	34.10%	29.90%
Unrecognized Tax Benefits	1	4			$ 68	$ 1	$ 4	$ 166
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1				1	1
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense					37	(6)	$ (15)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0				38	$ 0
Expiration 2016 through 2020 [Domain]
Income Tax Note [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration					497
Tax credit carryforwards, net of uncertain tax positions					$ 1
Provision (credit) for income taxes [Domain]
Income Tax Note [Line Items]
Tax charge related to adjusted uncertain tax position				$ 41
Tax Adjustments, Settlements, and Unusual Provisions			$ (22)
Polypropylene Licensing and Catalyst Business [Member]
Income Tax Note [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 4	$ 368