SEGMENTS AND GEOGRAPHIC REGIONS Significant Items (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 103		$ 103
Gain (Loss) Related to Litigation Settlement	42		42
Gain (Loss) on Extinguishment of Debt			(60)
Charges related to separation, distribution and tax matters agreements	(17)		(115)
Other Nonrecurring (Income) Expense	(468)	$ (56)	(884)	$ (147)
Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0		0
Gain (Loss) Related to Litigation Settlement	42		42
Gain (Loss) on Extinguishment of Debt			(60)
Charges related to separation, distribution and tax matters agreements	(17)		(115)
Other Nonrecurring (Income) Expense	(177)		(592)
2023 Restructuring Program
Segment Reporting Information [Line Items]
Restructuring Charges		(56)	(51)	(147)
2023 Restructuring Program | Segment Reporting, Reconciling Item, Corporate Nonsegment
Segment Reporting Information [Line Items]
Restructuring Charges		(56)	(50)	(102)
2025 Program
Segment Reporting Information [Line Items]
Restructuring Charges			(798)
2025 Program | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	(5)		(5)
2025 Program | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	(591)		(798)
2025 Program | Segment Reporting, Reconciling Item, Corporate Nonsegment | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	(5)		(5)
2025 Program | Segment Reporting, Reconciling Item, Corporate Nonsegment | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	(197)		(404)
Operating Segment Total
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(103)		(103)
Gain (Loss) Related to Litigation Settlement	0		0
Gain (Loss) on Extinguishment of Debt			0
Charges related to separation, distribution and tax matters agreements	0		0
Other Nonrecurring (Income) Expense	(291)		(292)
Operating Segment Total | 2023 Restructuring Program
Segment Reporting Information [Line Items]
Restructuring Charges		0	(1)	(45)
Operating Segment Total | 2025 Program | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	0		0
Operating Segment Total | 2025 Program | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	(394)		(394)
Packaging & Specialty Plastics [Member] | Operating Segments
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0		0
Gain (Loss) Related to Litigation Settlement	0		0
Gain (Loss) on Extinguishment of Debt			0
Charges related to separation, distribution and tax matters agreements	0		0
Other Nonrecurring (Income) Expense	(158)		(158)
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program | Operating Segments
Segment Reporting Information [Line Items]
Restructuring Charges		0	0	(37)
Packaging & Specialty Plastics [Member] | 2025 Program | Operating Segments | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	0		0
Packaging & Specialty Plastics [Member] | 2025 Program | Operating Segments | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	(158)		(158)
Industrial Intermediates & Infrastructure [Member] | Operating Segments
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(103)		(103)
Gain (Loss) Related to Litigation Settlement	0		0
Gain (Loss) on Extinguishment of Debt			0
Charges related to separation, distribution and tax matters agreements	0		0
Other Nonrecurring (Income) Expense	14		13
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program | Operating Segments
Segment Reporting Information [Line Items]
Restructuring Charges		0	(1)	(8)
Industrial Intermediates & Infrastructure [Member] | 2025 Program | Operating Segments | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	0		0
Industrial Intermediates & Infrastructure [Member] | 2025 Program | Operating Segments | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	(89)		(89)
Performance Materials & Coatings [Member] | Operating Segments
Segment Reporting Information [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	0		0
Gain (Loss) Related to Litigation Settlement	0		0
Gain (Loss) on Extinguishment of Debt			0
Charges related to separation, distribution and tax matters agreements	0		0
Other Nonrecurring (Income) Expense	(147)		(147)
Performance Materials & Coatings [Member] | 2023 Restructuring Program | Operating Segments
Segment Reporting Information [Line Items]
Restructuring Charges		$ 0	0	$ 0
Performance Materials & Coatings [Member] | 2025 Program | Operating Segments | Restructuring Implementation Costs
Segment Reporting Information [Line Items]
Restructuring Charges	0		0
Performance Materials & Coatings [Member] | 2025 Program | Operating Segments | Severance and related benefit costs and asset write-downs and write-offs
Segment Reporting Information [Line Items]
Restructuring Charges	$ (147)		$ (147)