NONCONSOLIDATED AFFILIATES AND RELATED COMPANY TRANSACTIONS, Narrative (Details) - USD ($) $ in Millions				3 Months Ended					12 Months Ended
		Dec. 23, 2015	Jul. 31, 2015	Dec. 31, 2016		Mar. 31, 2016	Dec. 31, 2015		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014		Jun. 01, 2016		May 31, 2016
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates				$ 3,747	[1]		$ 3,958		$ 3,747	[1]	$ 3,958		$ 4,201
Equity method investment classified as Other noncurrent obligations				(1,030)			(148)		(1,030)		(148)
Equity Method Investments less portion classified as Other noncurrent obligations	[2]			2,717			3,810		2,717		3,810
Equity Method Investment, Dividends or Distributions									685		816		961	[3]
Equity Method Investment, Accrued Dividends													5
Investments in and loans to nonconsolidated affiliates									1,020		803		$ 270
Exclusive of additional differences for Dow Corning and MEGlobal [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity				(62)			(97)		(62)		(97)
Hemlock Semiconductor LLC [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates	[4]														$ (958)
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity				$ (902)					$ (902)
Equity Method Investment, Ownership Percentage				50.10%	[5]				50.10%	[5]					50.10%	[4]
DC HSC Holdings LLC [Member] [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage				50.00%	[5]				50.00%	[5]					50.00%	[6]
Dow Corning Corporation [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity							$ 149				$ 149
Equity Method Investment, Ownership Percentage							50.00%	[7]			50.00%	[7]	50.00%	[7]	100.00%		50.00%
EQUATE Petrochemical Company K.S.C. [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity				$ 536			$ 555		$ 536		$ 555
Equity Method Investment, Ownership Percentage		42.50%		42.50%			42.50%		42.50%		42.50%		42.50%
Equate, Amount Amortized Over the Remaining Useful Lives of the Assets [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity				$ (216)			$ (250)		$ (216)		$ (250)
Equate Permanent Difference in Investment with Investor [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity							$ (305)				$ (305)
MEGlobal [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage							50.00%				50.00%		50.00%	[8]
AgroFresh [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates			$ 210
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity				(96)			$ (80)		$ (96)		$ (80)
Equity Method Investment, Ownership Percentage			35.00%
Equity Method Investment, Additional Information			17.5
Equity Method Investment, Other than Temporary Impairment				$ 143
Sadara [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage				35.00%			35.00%		35.00%		35.00%		35.00%
Equity Method Investments Loan Conversion to Equity									$ 1,230
Investments in and loans to nonconsolidated affiliates									1,015
Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Noncurrent receivables, Balance Due From Nonconsolidated Affiliates				$ 267			$ 473		267		$ 473
Equity Method Investee [Member] | Sadara [Member]
Schedule of Equity Method Investments [Line Items]
Noncurrent receivables, Balance Due From Nonconsolidated Affiliates				258			473		258		473
Equity Method Investments Loan Conversion to Equity				193		$ 460
Performance Materials & Chemicals [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates				1,588	[1]		155		1,588	[1]	155		$ 698
Performance Materials & Chemicals [Member] | EQUATE Petrochemical Company K.S.C. [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Realized Gain on Disposal Eliminated		$ 555					555
Other Noncurrent Obligations [Member]
Schedule of Equity Method Investments [Line Items]
Investment in nonconsolidated affiliates				$ 128			$ 148		$ 128		$ 148
Indirect Ownership Interest [Domain] | Hemlock Semiconductor Operations [Domain]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage															80.50%

[1] Equity contributions to Sadara, which prior to 2016 were reflected in the Corporate segment, were reallocated to Performance Materials & Chemicals and Performance Plastics in 2016.

[2] The carrying amount of the Company’s investments in nonconsolidated affiliates was $62 million more than its share of the investees’ net assets, exclusive of additional differences for EQUATE and AFSI, which are discussed separately below.

[3] Includes accrued dividends of $5 million.

[4] Hemlock Semiconductor L.L.C. is a nonconsolidated variable interest entity. See Note 20 for additional information.

[5] The HSC Group was previously part of the Dow Corning equity method investment and was added as principal nonconsolidated affiliates in the fourth quarter of 2016.

[6] DC HSC Holdings LLC holds an 80.5 percent indirect ownership interest in Hemlock Semiconductor Operations.

[7] On June 1, 2016, Dow became the 100 percent owner of Dow Corning. See Note 4 for additional information.

[8] On December 23, 2015, the Company sold its 50 percent ownership interest in MEGlobal to EQUATE. MEGlobal is treated as a separate principal nonconsolidated affiliate through the date of divestiture. See Note 5 for additional information.