EARNINGS PER SHARE CALCULATIONS (Net Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Earnings Per Share [Abstract]
Net Income Attributable to The Dow Chemical Company	$ 967		$ 2,425		$ 2,016		$ 3,060
Preferred stock dividends	(85)	[1]	(85)		(170)	[1]	(170)
Antidilutive Dividends, Preferred Stock			0	[1]			0	[1]
Net income attributable to participating securities	(6)	[2]	(20)	[2]	(14)	[2]	(25)	[2]
Net income attributable to participating securities, Diluted	(6)	[2]	(20)	[2]	(14)	[2]	(25)	[2]
Net income attributable to common stockholders	876		2,320		1,832		2,865
Net income attributable to common stockholders, Diluted	$ 876		$ 2,405		$ 1,832		$ 3,035

[1] Preferred stock dividends were not added back in the calculation of diluted earnings per share for the three- and six-month periods ended June 30, 2014 because the effect of adding them back would have been antidilutive.

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