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]	Unearned ESOP Shares [Member]	Treasury Stock [Member]
Total equity		$ 8	$ 7,595	$ 16,361	$ (10,855)	$ (49)	$ (625)
Stock Issued During Period, Value, Common Stock			127
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			21			10
APIC, Stock Issued During Period, Value, Treasury Reissued - compensation and benefit plans			0
Net Income (Loss) Available to Common Stockholders, Basic	$ 986			991
Dividends, Common Stock				(521)
Stockholders' Equity, Other				(2)
Other Comprehensive Income (Loss), Net of Tax	$ 942				942
Treasury Stock, Value, Acquired, Cost Method							0
Stock Issued During Period, Value Treasury Stock Reissued - compensation and benefit plans							0
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 14,003
Noncontrolling interests	560
Total equity	14,563	8	7,743	16,829	(9,913)	(39)	(625)
Dow Inc.’s stockholders’ equity	18,165
Noncontrolling interests	574
Total equity	18,739	8	8,151	20,623	(8,977)	(15)	(1,625)
Stock Issued During Period, Value, Common Stock			35
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			35			15
APIC, Stock Issued During Period, Value, Treasury Reissued - compensation and benefit plans			(4)
Net Income (Loss) Available to Common Stockholders, Basic	1,561			1,569
Dividends, Common Stock				(513)
Stockholders' Equity, Other				(7)
Other Comprehensive Income (Loss), Net of Tax	$ 181				181
Treasury Stock, Value, Acquired, Cost Method							(600)
Stock Issued During Period, Value Treasury Stock Reissued - compensation and benefit plans							4
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 18,880
Noncontrolling interests	545
Total equity	$ 19,425	$ 8	$ 8,217	$ 21,672	$ (8,796)	$ 0	$ (2,221)