EARNINGS PER SHARE CALCULATIONS (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following tables provide the earnings per share calculations for the three- and nine-month periods ended September 30, 2016 and 2015:

Net Income for Earnings Per Share Calculations - Basic	Three Months Ended						Nine Months Ended
In millions	Sep 30, 2016			Sep 30, 2015			Sep 30, 2016			Sep 30, 2015
Net income attributable to The Dow Chemical Company	$	804		$	1,375		$	4,266		$	4,073
Preferred stock dividends	(85		)	(85		)	(255		)	(255		)
Net income attributable to participating securities (1)	(4		)	(9		)	(23		)	(26		)
Net income attributable to common stockholders	$	715		$	1,281		$	3,988		$	3,792

Earnings Per Share Calculations - Basic	Three Months Ended						Nine Months Ended
Dollars per share	Sep 30, 2016			Sep 30, 2015			Sep 30, 2016			Sep 30, 2015
Net income attributable to The Dow Chemical Company	$	0.72		$	1.21		$	3.85		$	3.58
Preferred stock dividends	(0.08		)	(0.08		)	(0.23		)	(0.23		)
Net income attributable to participating securities (1)	—			(0.01		)	(0.02		)	(0.02		)
Net income attributable to common stockholders	$	0.64		$	1.12		$	3.60		$	3.33

Net Income for Earnings Per Share Calculations - Diluted	Three Months Ended						Nine Months Ended
In millions	Sep 30, 2016			Sep 30, 2015			Sep 30, 2016			Sep 30, 2015
Net income attributable to The Dow Chemical Company	$	804		$	1,375		$	4,266		$	4,073
Preferred stock dividends (2)	(85		)	—			—			—
Net income attributable to participating securities (1)	(4		)	(9		)	(23		)	(26		)
Net income attributable to common stockholders	$	715		$	1,366		$	4,243		$	4,047

Earnings Per Share Calculations - Diluted	Three Months Ended						Nine Months Ended
Dollars per share	Sep 30, 2016			Sep 30, 2015			Sep 30, 2016			Sep 30, 2015
Net income attributable to The Dow Chemical Company	$	0.71		$	1.10		$	3.50		$	3.26
Preferred stock dividends (2)	(0.08		)	—			—			—
Net income attributable to participating securities (1)	—			(0.01		)	(0.02		)	(0.02		)
Net income attributable to common stockholders	$	0.63		$	1.09		$	3.48		$	3.24

Share Count Information	Three Months Ended		Nine Months Ended
Shares in millions	Sep 30, 2016	Sep 30, 2015	Sep 30, 2016	Sep 30, 2015
Weighted-average common shares - basic	1,112.4	1,141.3	1,108.8	1,138.4
Plus dilutive effect of stock options and awards	15.0	12.5	14.8	13.7
Plus dilutive effect of assumed conversion of preferred stock (3)	—	96.8	96.8	96.8
Weighted-average common shares - diluted	1,127.4	1,250.6	1,220.4	1,248.9
Stock options and deferred stock awards excluded from EPS calculations (4)	—	6.1	2.5	5.2

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

(2) Preferred stock dividends were not added back in the calculation of diluted earnings per share for the three months ended September 30, 2016, because the effect of adding them back would have been antidilutive.

(3) Conversion of the Company's Cumulative Convertible Perpetual Preferred Stock, Series A into shares of the Company's common stock was excluded from the calculation of diluted earnings per share for the three months ended September 30, 2016, because the effect of including them would have been antidilutive.

(4) These outstanding options to purchase shares of common stock and deferred stock awards were excluded from the calculation of diluted earnings per share because the effect of including them would have been antidilutive.