EARNINGS PER SHARE CALCULATIONS (Net Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Net Income	$ 2,443	$ 740	$ 740	$ 3,103	$ 1,260
Net income attributable to noncontrolling interests	(18)	(6)	(6)	(43)	(29)
Net Income Attributable to The Dow Chemical Company	2,425	734	734	3,060	1,231
Preferred stock dividends	(85)	(85)	(85)	(170)	(170)
Net income attributable to participating securities	(20)		(6)	(25)	(10)
Net income attributable to common stockholders	$ 2,320		$ 643	$ 2,865	$ 1,051