REVENUE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue from External Customer [Line Items]
Revenues	$ 44,622	$ 56,902	$ 54,968
Contract with Customer, Liability, Revenue Recognized	315	250	295
Contract with Customer, Asset, Reclassified to Receivable	45	15
Trade (net of allowance for doubtful receivables - 2023: $81; 2022: $110)	4,718	5,611
Contract assets - current	13	48
Contract assets - noncurrent	4	16
Contract liabilities - current	195	275
Contract liabilities - noncurrent	1,642	1,725
The Dow Chemical Company
Revenue from External Customer [Line Items]
Trade (net of allowance for doubtful receivables - 2023: $81; 2022: $110)	4,718	5,611
U.S.& Canada [Member]
Revenue from External Customer [Line Items]
Revenues	16,640	20,945	19,613
Europe, Middle East, Africa and India
Revenue from External Customer [Line Items]
Revenues	14,537	19,631	19,746
Asia Pacific [Member]
Revenue from External Customer [Line Items]
Revenues	8,266	10,344	10,043
Latin America [Member]
Revenue from External Customer [Line Items]
Revenues	5,179	5,982	5,566
Packaging & Specialty Plastics [Member] [Domain]
Revenue from External Customer [Line Items]
Revenues	23,149	29,260	28,128
Industrial Intermediates & Infrastructure [Member]
Revenue from External Customer [Line Items]
Revenues	12,538	16,606	16,851
Performance Materials & Coatings [Member]
Revenue from External Customer [Line Items]
Revenues	8,497	10,764	9,672
Corporate Segment [Member]
Revenue from External Customer [Line Items]
Revenues	438	272	317
Hydrocarbons & Energy [Member] | Packaging & Specialty Plastics [Member] [Domain]
Revenue from External Customer [Line Items]
Revenues	6,566	9,414	8,149
Packaging and Specialty Plastics [Member] | Packaging & Specialty Plastics [Member] [Domain]
Revenue from External Customer [Line Items]
Revenues	16,583	19,846	19,979
Industrial Solutions [Member] | Industrial Intermediates & Infrastructure [Member]
Revenue from External Customer [Line Items]
Revenues	4,207	5,682	5,139
Polyurethanes & Construction Chemicals | Industrial Intermediates & Infrastructure [Member]
Revenue from External Customer [Line Items]
Revenues	8,316	10,907	11,700
Other [Member] | Industrial Intermediates & Infrastructure [Member]
Revenue from External Customer [Line Items]
Revenues	15	17	12
Coatings and Performance Monomers [Member] | Performance Materials & Coatings [Member]
Revenue from External Customer [Line Items]
Revenues	3,337	4,051	4,050
Consumer Solutions [Member] | Performance Materials & Coatings [Member]
Revenue from External Customer [Line Items]
Revenues	$ 5,160	$ 6,713	$ 5,622
Maximum
Revenue from External Customer [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	21 years
Product
Revenue from External Customer [Line Items]
Revenue, Percentage from Products and Service Transferred to Customers	98.00%	99.00%	99.00%
Licensing of Technology
Revenue from External Customer [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 744	$ 840