Consolidated Statements of Income - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net Sales	$ 55,508,000,000	$ 48,158,000,000	$ 48,778,000,000
Cost of sales	44,308,000,000	37,640,000,000	37,745,000,000
Research and development expenses	1,637,000,000	1,584,000,000	1,598,000,000
Selling, general and administrative expenses	2,917,000,000	2,956,000,000	2,948,000,000
Amortization of intangibles	624,000,000	544,000,000	419,000,000
Restructuring, goodwill impairment and asset related charges - net	3,100,000,000	595,000,000	559,000,000
Integration and separation costs	786,000,000	349,000,000	23,000,000
Asbestos-related charge	0	1,113,000,000.00	0
Equity in earnings of nonconsolidated affiliates	762,000,000	442,000,000	674,000,000
Sundry income (expense) - net	877,000,000	1,452,000,000	4,716,000,000
Interest expense and amortization of debt discount	976,000,000	858,000,000	946,000,000
Income Before Income Taxes	2,799,000,000	4,413,000,000	9,930,000,000
Provision for income taxes	2,204,000,000	9,000,000	2,147,000,000
Net Income	595,000,000	4,404,000,000	7,783,000,000
Net income attributable to noncontrolling interests	129,000,000	86,000,000	98,000,000
Net Income Attributable to The Dow Chemical Company	466,000,000	4,318,000,000	7,685,000,000
Preferred stock dividends	0	340,000,000	340,000,000
Net Income Available for The Dow Chemical Company Common Stockholders	$ 466,000,000	$ 3,978,000,000	$ 7,345,000,000