RESTRUCTURING AND ASSET RELATED CHARGES - NET (2023 Restructuring Program) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	$ 8,000,000		$ 0	$ 549,000,000	$ 186,000,000
Restructuring Charges	55,000,000		10,000,000	606,000,000	20,000,000
2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	273,000,000	$ 333,000,000		$ 273,000,000
Payments for Restructuring	60,000,000	11,000,000
Restructuring Reserve, Settled without Cash	8,000,000	197,000,000
Restructuring and asset related charges - net	8,000,000	541,000,000
Restructuring Reserve, Settled without Cash	$ (8,000,000)	(197,000,000)
Restructuring and related workforce reduction	2,000			2,000
Restructuring Charges				$ 549,000,000
2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 273,000,000	333,000,000		273,000,000
Payments for Restructuring	60,000,000	11,000,000
Restructuring Reserve, Settled without Cash	0	0
Restructuring and asset related charges - net	0	344,000,000
Restructuring Reserve, Settled without Cash	0	0
Restructuring Charges	344,000,000			344,000,000
2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0	0		0
Payments for Restructuring	0	0
Restructuring Reserve, Settled without Cash	8,000,000	197,000,000
Restructuring and asset related charges - net	8,000,000	197,000,000
Restructuring Reserve, Settled without Cash	(8,000,000)	(197,000,000)
Restructuring Charges				205,000,000
2023 Restructuring Program | Restructuring Implementation Costs
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	340,000,000
Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		0	1,000,000	0
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		1,000,000
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		0
Packaging & Specialty Plastics [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		1,000,000
Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	8,000,000		0	48,000,000	0
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	8,000,000
Restructuring and asset related charges - net		40,000,000
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	0
Restructuring and asset related charges - net		0
Industrial Intermediates & Infrastructure [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	8,000,000
Restructuring and asset related charges - net		40,000,000
Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		0	67,000,000	0
Performance Materials & Coatings [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		49,000,000
Performance Materials & Coatings [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		0
Performance Materials & Coatings [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		49,000,000
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	47,000,000		$ 10,000,000	490,000,000	$ 20,000,000
Corporate Segment [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		451,000,000
Corporate Segment [Member] | 2023 Restructuring Program | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		344,000,000
Corporate Segment [Member] | 2023 Restructuring Program | Asset write-downs and write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		$ 107,000,000
Accrued and Other Current Liabilities [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	208,000,000			208,000,000
Other Noncurrent Obligations [Member] | 2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 65,000,000			$ 65,000,000