Dow Consolidated Statements of Equity Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common
Total equity		$ 8	$ 8,880	$ 21,774	$ (7,681)	$ (4,374)
Stock Issued During Period, Value, Common Stock			42
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			87
APIC, Stock Issued During Period, Value, Treasury Reissued - compensation and benefit plans			(67)
Net Income (Loss) Available to Common Stockholders, Basic	$ 513			516
Dividends, Common Stock				(493)
Transfer of Business Under Common Control				10
Stockholders' Equity, Other				(11)
Other Comprehensive Income (Loss), Net of Tax	$ (133)				(133)
Treasury Stock, Value, Acquired, Cost Method						(200)
Stock Issued During Period, Value Treasury Stock Reissued - compensation and benefit plans						67
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 18,425
Noncontrolling interests	492
Total equity	18,917	8	8,942	21,796	(7,814)	(4,507)
Dow Inc.’s stockholders’ equity	17,355
Noncontrolling interests	496
Total equity	17,851	8	9,203	20,909	(8,110)	(4,655)
Stock Issued During Period, Value, Common Stock			0
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			87
APIC, Stock Issued During Period, Value, Treasury Reissued - compensation and benefit plans			(95)
Net Income (Loss) Available to Common Stockholders, Basic	(310)			(307)
Dividends, Common Stock				(494)
Transfer of Business Under Common Control				0
Stockholders' Equity, Other				(7)
Other Comprehensive Income (Loss), Net of Tax	$ 154				154
Treasury Stock, Value, Acquired, Cost Method						0
Stock Issued During Period, Value Treasury Stock Reissued - compensation and benefit plans						95
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 16,788
Noncontrolling interests	507
Total equity	$ 17,295	$ 8	$ 9,195	$ 20,101	$ (7,956)	$ (4,560)