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, Common
Total equity		$ 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)
Dow Inc.’s stockholders’ equity	20,718
Noncontrolling interests	529
Total equity	21,247	8	8,540	23,180	(7,139)	0	(3,871)
Stock Issued During Period, Value, Common Stock			55
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			56			0
APIC, Stock Issued During Period, Value, Treasury Reissued - compensation and benefit plans			(44)
Net Income (Loss) Available to Common Stockholders, Basic	(96)			(93)
Dividends, Common Stock				(496)
Stockholders' Equity, Other				(7)
Other Comprehensive Income (Loss), Net of Tax	$ 74				74
Treasury Stock, Value, Acquired, Cost Method							(126)
Stock Issued During Period, Value Treasury Stock Reissued - compensation and benefit plans							44
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 20,181
Noncontrolling interests	534
Total equity	$ 20,715	$ 8	$ 8,607	$ 22,584	$ (7,065)	$ 0	$ (3,953)