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	$ 7,325	$ 17,045	$ (10,246)	$ (91)	$ (500)
Stock Issued During Period, Value, New Issues and Treasury Stock Reissued			16
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			29			10
Stockholders' Equity, Other				(3)
Net Income (Loss) Available to Common Stockholders, Basic	$ 237			239
Dividends, Common Stock				(518)
Other Comprehensive Income (Loss), Net of Tax	$ (283)				(283)
Treasury Stock, Value, Acquired, Cost Method							(125)
Common Stock, Dividends, Per Share, Declared	$ 0.70
Dow Inc.’s stockholders’ equity	$ 12,906
Noncontrolling interests	555
Total equity	13,461	8	7,370	16,763	(10,529)	(81)	(625)
Dow Inc.’s stockholders’ equity	12,435
Noncontrolling interests	570
Total equity	13,005	8	7,595	16,361	(10,855)	(49)	(625)
Stock Issued During Period, Value, New Issues and Treasury Stock Reissued			127
APIC, Share-based Payment Arrangement, Increase for Cost Recognition			21			10
Stockholders' Equity, Other				(2)
Net Income (Loss) Available to Common Stockholders, Basic	986			991
Dividends, Common Stock				(521)
Other Comprehensive Income (Loss), Net of Tax	$ 942				942
Treasury Stock, Value, Acquired, Cost Method							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)