RESTRUCTURING, GOODWILL IMPAIRMENT AND ASSET RELATED CHARGES - NET (2020 Restructuring Program) (Details) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					$ 528	$ 118	$ 6
Restructuring Charges					741	40	69
Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					1	8	8
Restructuring Charges					1	0	8
Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					50	73	1
Restructuring Charges					50	0	1
Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					49	6	10
Restructuring Charges					67	0	10
Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					428	31	(13)
Restructuring Charges					623	$ 40	$ 50
2023 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	$ 14		$ 8	$ 541	535
Payments for Restructuring					(222)
Restructuring Reserve	122				122
Restructuring Reserve, Settled without Cash					(191)
2023 Restructuring Program | Accrued and Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	101				101
2023 Restructuring Program | Other Noncurrent Obligations
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	21				21
2023 Restructuring Program | Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					1
2023 Restructuring Program | Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					50
2023 Restructuring Program | Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					49
2023 Restructuring Program | Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					435
2023 Restructuring Program | Asset Write-downs and Write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net		$ 191			191
Payments for Restructuring					0
Restructuring Reserve	0				0
Restructuring Reserve, Settled without Cash					(191)
2023 Restructuring Program | Asset Write-downs and Write-offs | Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					1
2023 Restructuring Program | Asset Write-downs and Write-offs | Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					50
2023 Restructuring Program | Asset Write-downs and Write-offs | Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					49
2023 Restructuring Program | Asset Write-downs and Write-offs | Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					91
2023 Restructuring Program | Severance and Related Benefit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					344
Payments for Restructuring					(222)
Restructuring Reserve	$ 122				122
Restructuring Charges					344
Restructuring Reserve, Settled without Cash					0
2023 Restructuring Program | Severance and Related Benefit Costs | Packaging & Specialty Plastics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					0
2023 Restructuring Program | Severance and Related Benefit Costs | Industrial Intermediates & Infrastructure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					0
2023 Restructuring Program | Severance and Related Benefit Costs | Performance Materials & Coatings [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					0
2023 Restructuring Program | Severance and Related Benefit Costs | Corporate Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net					$ 344