COMMITMENTS AND CONTINGENT LIABILITIES (Urethane Matters) (Narrative) (Details) - Performance Materials & Chemicals [Member] - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2016	Mar. 31, 2016
Urethane Antitrust Litigation [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 835
Loss Contingency, Loss in Period		$ 835
Opt-out Cases [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party	$ 400
Loss Contingency, Loss in Period	$ 400