SEGMENTS AND GEOGRAPHIC REGIONS Significant Items (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	$ (46)	$ (348)	$ (111)	$ (750)
Restructuring Charges	(6)	(65)	(102)	(221)
Gain (Loss) on Extinguishment of Debt	0	(44)	(86)	(44)
Other Nonrecurring (Income) Expense	(46)	(628)	(293)	(1,186)
Gain (Loss) Related to Litigation Settlement	6		6
Charges related to separation, distribution and tax matters agreements		(127)		(127)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		(44)		(44)
Packaging & Specialty Plastics [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	0	0	0	0
Restructuring Charges	(6)	(6)	(12)	(19)
Gain (Loss) on Extinguishment of Debt	0	0	0	0
Other Nonrecurring (Income) Expense	0	(6)	(6)	(19)
Gain (Loss) Related to Litigation Settlement	6		6
Charges related to separation, distribution and tax matters agreements		0		0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		0		0
Industrial Intermediates & Infrastructure [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	0	0	0	0
Restructuring Charges	0	0	0	0
Gain (Loss) on Extinguishment of Debt	0	0	0	0
Other Nonrecurring (Income) Expense	0	0	0	0
Gain (Loss) Related to Litigation Settlement	0		0
Charges related to separation, distribution and tax matters agreements		0		0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		0		0
Performance Materials & Coatings [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	0	0	0	0
Restructuring Charges	0	(22)	0	(22)
Gain (Loss) on Extinguishment of Debt	0	0	0	0
Other Nonrecurring (Income) Expense	0	(22)	0	(22)
Gain (Loss) Related to Litigation Settlement	0		0
Charges related to separation, distribution and tax matters agreements		0		0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		0		0
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	(46)	(348)	(111)	(750)
Restructuring Charges	0	(37)	(90)	(180)
Gain (Loss) on Extinguishment of Debt	0	(44)	(86)	(44)
Other Nonrecurring (Income) Expense	(46)	(600)	(287)	(1,145)
Gain (Loss) Related to Litigation Settlement	$ 0		$ 0
Charges related to separation, distribution and tax matters agreements		(127)		(127)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		$ (44)		$ (44)

Charges related to separation, distribution and tax matters agreements

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Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of other expense (income) that is infrequent in occurrence or unusual in nature.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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