OTHER FINANCIAL DATA - EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Basic earnings per common share		$ 1.28	$ 1.76
Weighted-average common shares outstanding for basic EPS	[1]	249,734,000	247,722,000
Diluted earnings per common share		$ 1.27	$ 1.74
Weighted-average common shares outstanding for diluted EPS		251,412,000	251,206,000
Vested RSUs included in basic WASO		555,000	452,000
Dilutive effect of stock options, restricted stock awards and restricted stock units		1,678,000	3,484,000
Shares excluded from potential dilutive shares		2,616,084	1,285,193
Earnings		$ 319	$ 437
Out Of The Money Stock Options [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		0	0
Employee Stock Option [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		0	0
Restricted Stock [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		0	0
Restricted Stock Units [Member]
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share		0	614

[1] Includes 555 and 452 average fully vested restricted stock units held in our Deferred Compensation Plan for the three months ended March 31, 2016 and 2015, respectively. These fully vested restricted stock units are included in weighted-average common shares outstanding for basic EPS because there are no conditions under which the corresponding shares will not be issued.