STOCKHOLDERS' EQUITY (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 02, 2014
Common stock issuances
Balance at the beginning of the year	890,557,537	889,919,000	888,801,000
Issued	782,000	584,000	826,000
Options exercised and other, net	20,000	55,000	292,000
Balance at the end of the year	891,360,091	890,557,537	889,919,000
Share repurchase program, increase in authorized shares				60,000,000
Share repurchase program, authorized shares				185,000,000
TREASURY STOCK
Shares purchased under share repurchase program	7,400,000	25,800,000
Share repurchase program, average cost per share of shares repurchased during period	$ 76.99	$ 93.40
Treasury stock, shares	127,681,335	119,951,199	93,900,000
NONREDEEMABLE PREFERRED STOCK
Preferred stock, authorized shares	50,000,000
Preferred stock, par value	$ 1.00
Preferred stock, outstanding shares	0
Basic earnings (loss) per common share
Income (loss) from continuing operations	$ (8,146)	$ (130)	$ 4,932
(Loss) / Income from continuing operations	(8,146)	(144)	4,932
Discontinued operations, net	317	760	971
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON STOCK	(7,829)	616	5,903
Less: Net income allocated to participating securities			(13)
Net income attributable to common stock, net of participating securities	$ (7,829)	$ 616	$ 5,890
Weighted average number of basic shares	765,600,000	781,100,000	804,100,000
Basic earnings (loss) per common share	$ (10.23)	$ 0.79	$ 7.33
Diluted earnings (loss) per common share
Net income attributable to common stock, net of participating securities	$ (7,829)	$ 616	$ 5,890
Weighted average number of basic shares	765,600,000	781,100,000	804,100,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements			500,000
Total diluted weighted average common shares	765,600,000	781,100,000	804,600,000
Diluted earnings (loss) per common share	$ (10.23)	$ 0.79	$ 7.32
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Foreign currency translation adjustments	$ (9)	$ (7)
Unrealized losses on derivatives	(7)	(11)
Pension and post-retirement adjustments	(291)	(339)
Accumulated other comprehensive income (loss)	$ (307)	$ (357)