OPERATING SEGMENTS AND GEOGRAPHIC AREAS (Certain Items by Segment) (Details) - USD ($) $ in Millions			3 Months Ended				6 Months Ended
		Jun. 01, 2016	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2017		Jun. 30, 2016
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			$ (158)	[1]	$ (107)	[2]	$ (293)	[3]	$ (172)	[4]
Restructuring Charges and adjustments			12	[5]			12
Certain items, excluded from Operating EBITDA			(2)		1,763		(606)		463
Impact of Dow Corning Ownership Restructure					2,318	[6]			2,318
Restructuring Charges			12		(454)		13		(452)
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain							0		2,445
Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			0	[1]	0	[2]	0	[3]	0	[4]
Restructuring Charges and adjustments			0	[5]			0
Certain items, excluded from Operating EBITDA			0		(4)		(469)		(4)
Impact of Dow Corning Ownership Restructure					0	[6]			0
Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			0	[1]	0	[2]	0	[3]	0	[4]
Restructuring Charges and adjustments			0	[5]			0
Certain items, excluded from Operating EBITDA			0		1,234		0		1,234
Impact of Dow Corning Ownership Restructure					1,263	[6]			1,263
Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			0	[1]	0	[2]	0	[3]	0	[4]
Restructuring Charges and adjustments			3	[5]			3
Certain items, excluded from Operating EBITDA			3		958		3		958
Impact of Dow Corning Ownership Restructure					1,055	[6]			1,055
Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			0	[1]	0	[2]	0	[3]	0	[4]
Restructuring Charges and adjustments			0	[5]			0
Certain items, excluded from Operating EBITDA			0		6		0		(1,229)
Impact of Dow Corning Ownership Restructure					0	[6]			0
Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			0	[1]	0	[2]	0	[3]	0	[4]
Restructuring Charges and adjustments			0	[5]			0
Certain items, excluded from Operating EBITDA			137		(10)		137		(10)
Impact of Dow Corning Ownership Restructure					0	[6]			0
Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			(158)	[1]	(107)	[2]	(293)	[3]	(172)	[4]
Restructuring Charges and adjustments			9	[5]			9
Certain items, excluded from Operating EBITDA			(142)		(421)		(277)		(486)
Impact of Dow Corning Ownership Restructure					0	[6]			0
Bayer Arbitration [Domain]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						(469)
Bayer Arbitration [Domain] | Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						(469)
Bayer Arbitration [Domain] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						0
Bayer Arbitration [Domain] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						0
Bayer Arbitration [Domain] | Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						0
Bayer Arbitration [Domain] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						0
Bayer Arbitration [Domain] | Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[7]						0
Urethane Antitrust Litigation and Opt-out Cases [Domain]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								(1,235)
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								0
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								0
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								0
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								(1,235)
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								0
Urethane Antitrust Litigation and Opt-out Cases [Domain] | Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Loss Contingency, Loss in Period	[8]								0
Cost of Sales [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			(19)		(34)		(42)		(57)
Selling, General and Administrative Expenses [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Costs associated with transactions and productivity actions (1)			(139)		(73)		(251)		(115)
Dow Corning Corporation [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		$ 2,445			2,445
Business Combination, Acquired Inventory, Fair Value Step-Up, Portion Expensed					105
Loss from equity method investment from extinguishment of debt					22
Dow Corning Corporation [Member] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		1,301
Dow Corning Corporation [Member] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain		$ 1,144
Chlorine Value Chain [Domain]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			7	[9]	6	[10]	7		6
Chlorine Value Chain [Domain] | Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			0	[9]	0	[10]	0		0
Chlorine Value Chain [Domain] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			0	[9]	0	[10]	0		0
Chlorine Value Chain [Domain] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			0	[9]	0	[10]	0		0
Chlorine Value Chain [Domain] | Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			0	[9]	6	[10]	0		6
Chlorine Value Chain [Domain] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			0	[9]	0	[10]	0		0
Chlorine Value Chain [Domain] | Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Gain adjustment on split-off of chlorine value chain			7	[9]	0	[10]	7		0
Restructuring and Other Asset Related Charges [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(454)	[11]			(454)
Restructuring and Other Asset Related Charges [Member] | Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(4)	[11]			(4)
Restructuring and Other Asset Related Charges [Member] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(29)	[11]			(29)
Restructuring and Other Asset Related Charges [Member] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(97)	[11]			(97)
Restructuring and Other Asset Related Charges [Member] | Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					0	[11]			0
Restructuring and Other Asset Related Charges [Member] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(10)	[11]			(10)
Restructuring and Other Asset Related Charges [Member] | Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Restructuring Charges					(314)	[11]			(314)
Nova patent infringement award [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			137	[12]			137
Nova patent infringement award [Member] | Agricultural Sciences [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			0	[12]			0
Nova patent infringement award [Member] | Consumer Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			0	[12]			0
Nova patent infringement award [Member] | Infrastructure Solutions [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			0	[12]			0
Nova patent infringement award [Member] | Performance Materials & Chemicals [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			0	[12]			0
Nova patent infringement award [Member] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			160
Nova patent infringement award [Member] | Corporate Segment [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			0	[12]			0
Nova patent infringement award [Member] | Impact to Sundry income (expense) [Member] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)	[13]		137	[12]	$ 0		$ 137		$ 0
Nova patent infringement award [Member] | Selling, General and Administrative Expenses [Member] | Performance Plastics [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
Nova patent infringement award (2)			$ 23

[1] Primarily financial, legal and professional advisory fees associated with the planned all-stock merger of equals with E. I. du Pont de Nemours and Company ("DuPont"), implementation costs associated with the DCC Transaction, implementation costs associated with the Company's restructuring programs and other productivity actions, which were included in "Cost of sales" ($19 million) and "Selling, general and administrative expenses" ($139 million) in the consolidated statements of income.

[2] Primarily financial, legal and professional advisory fees associated with the planned all-stock merger of equals with DuPont, costs associated with the DCC Transaction and implementation costs associated with the 2015 Restructuring program, which were included in "Cost of sales" ($34 million) and "Selling, general and administrative expenses" ($73 million) in the consolidated statements of income.

[3] Included in "Cost of sales" ($42 million) and "Selling, general and administrative expenses" ($251 million) in the consolidated statements of income.

[4] Included in "Cost of sales" ($57 million) and "Selling, general and administrative expenses" ($115 million) in the consolidated statements of income.

[5] Included in "Restructuring charges (credits)" in the consolidated statements of income. See Note 3 for additional information.

[6] Includes the non-taxable gain of $2,445 million from the DCC Transaction, included in "Sundry income (expense) - net," $105 million loss for a one-time increase in "Cost of sales" related to the fair value step-up of inventories assumed in the ownership restructure and a $22 million loss related to the early redemption of debt incurred by Dow Corning, reflected in "Equity in earnings of nonconsolidated affiliates" in the consolidated statements of income. See Note 4 for additional information.

[7] Included in "Sundry income (expense) - net" in the consolidated statements of income. See Notes 9 and 10 for additional information.

[8] Included in "Sundry income (expense) - net" in the consolidated statements of income. See Notes 9 and 10 for additional information.

[9] Included in "Sundry income (expense) - net" in the consolidated statements of income.

[10] Included in "Sundry income (expense) - net" in the consolidated statements of income.

[11] Included in "Restructuring charges (credits)" in the consolidated statements of income. See Note 3 for additional information.

[12] Included in "Sundry income (expense) - net" in the consolidated statements of income. See Notes 9 and 10 for additional information.

[13] See Note 10 for additional information.