COMMITMENTS AND CONTINGENT LIABILITIES (Urethane Matters) (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Loss Contingencies [Line Items]
Litigation Settlement, Amount	$ 130	$ 0
Performance Materials & Chemicals [Member] | Urethane Antitrust Litigation [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount		835
Loss Contingency, Loss in Period		835
Performance Materials & Chemicals [Member] | Opt-out Cases [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount		400
Loss Contingency, Loss in Period		$ 400