EARNINGS PER SHARE CALCULATIONS (Net Income) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income attributable to The Dow Chemical Company		$ 4,318	$ 7,685	$ 3,772
Preferred stock dividends		(340)	(340)	(340)
Net income attributable to participating securities (1)	[1]	(22)	(51)	(27)
Net income attributable to common stockholders		$ 3,956	$ 7,294	$ 3,405

[1] Deferred stock awards are considered participating securities due to Dow's practice of paying dividend equivalents on unvested shares.