COMMITMENTS AND CONTINGENT LIABILITIES (Urethane Matters) (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Jul. 31, 2013	Mar. 31, 2016	Mar. 31, 2013	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loss Contingencies [Line Items]
Litigation Settlement, Amount				$ (835)	$ 0	$ 0
February 20, 2013 Urethane Matters Ruling [Member] | Urethane Antitrust Litigation [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value			$ 400
July 26, 2013 Urethane Matters Ruling [Member] | Urethane Antitrust Litigation [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	$ 1,060
Maximum [Member] | July 26, 2013 Urethane Matters Ruling [Member] | Urethane Antitrust Litigation [Domain]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss				1,060
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