TDCC Consolidated Statements of Equity Statement - USD ($) $ in Millions	Total	Common Stock	Add'l Paid-in Capital	Retained Earnings [Member]	Accumulated Other Comprehensive Loss	Unearned ESOP	The Dow Chemical Company	The Dow Chemical Company Common Stock	The Dow Chemical Company Add'l Paid-in Capital	The Dow Chemical Company Retained Earnings [Member]	The Dow Chemical Company Accumulated Other Comprehensive Loss	The Dow Chemical Company Unearned ESOP	Dow Inc. [Member] The Dow Chemical Company Add'l Paid-in Capital	Dow Inc. [Member] The Dow Chemical Company Retained Earnings [Member]
Beginning balance at Dec. 31, 2019		$ 8	$ 7,325	$ 17,045	$ (10,246)	$ (91)		$ 0	$ 7,333	$ 17,313	$ (10,246)	$ (91)
Issuance of parent company stock													$ 108
Stock-based compensation and allocation of ESOP shares			162			42			162			42
Other			0	15					0	(15)
Net income available for The Dow Chemical Company common stockholder	$ 1,225			1,225			$ 1,235			1,235
Dividends to parent														$ (2,233)
Other comprehensive income (loss)	(609)				(609)						(609)
Ending balance at Dec. 31, 2020	13,005	8	7,595	16,361	(10,855)	(49)	13,569	0	7,603	16,300	(10,855)	(49)
The Dow Chemical Company’s stockholder's equity	12,435						12,999
Noncontrolling interests	570						570
Issuance of parent company stock													320
Stock-based compensation and allocation of ESOP shares			236			34			236			34
Other			0	22					0	(22)
Net income available for The Dow Chemical Company common stockholder	6,311			6,311			6,274			6,274
Dividends to parent														(3,264)
Other comprehensive income (loss)	1,878				1,878						1,878
Ending balance at Dec. 31, 2021	18,739	8	8,151	20,623	(8,977)	(15)	19,029	0	8,159	19,288	(8,977)	(15)
The Dow Chemical Company’s stockholder's equity	18,165						18,455
Noncontrolling interests	574						574
Issuance of parent company stock													$ 212
Stock-based compensation and allocation of ESOP shares			258			15			258			15
Other			2	19					(2)	(24)
Net income available for The Dow Chemical Company common stockholder	4,582			4,582			4,583			4,583
Dividends to parent														$ (4,375)
Other comprehensive income (loss)	1,838				1,838						1,838
Ending balance at Dec. 31, 2022	21,247	$ 8	$ 8,540	$ 23,180	$ (7,139)	$ 0	21,489	$ 0	$ 8,627	$ 19,472	$ (7,139)	$ 0
The Dow Chemical Company’s stockholder's equity	20,718						20,960
Noncontrolling interests	$ 529						$ 529