VARIABLE INTEREST ENTITIES (Nonconsolidated Variable Interest Entity) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	$ 3,703	$ 3,742
Variable Interest Entity, Not Primary Beneficiary [Member] | Hemlock Semiconductor LLC [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	0	0
Equity Method Investment, Liability, Noncurrent	(735)	(752)
Variable Interest Entity, Not Primary Beneficiary [Member] | Silicon Inputs Joint Ventures [Member]
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	102	103
Variable Interest Entity, Not Primary Beneficiary [Member] | AFSI [Member]
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	47	51
Other	$ 0	$ 4