STOCKHOLDERS’ EQUITY AND REDEEMABLE NONCONTROLLING INTEREST (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	2 Months Ended	3 Months Ended							5 Months Ended	6 Months Ended	9 Months Ended
	Jun. 30, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Jul. 01, 2015
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Dividends per common share		$ 0.40	$ 0.40	$ 0.40	$ 0.38	$ 0.38	$ 0.38	$ 0.38			$ 1.2	$ 1.14
Share repurchase authorization remaining available		$ 532							$ 532		$ 532
Purchases of treasury stock, value											$ 440	$ 174
Reissuance of shares for employee benefit plan											1.4	1.3
UMass Joint Venture [Member]
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners													18.90%
Redeemable noncontrolling interest, consideration													$ 68
Accelerated Share Repurchase Program [Member]
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock, value									$ 250
Treasury Stock, at Cost
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock- shares											5.7	2.4
Purchases of treasury stock, value											$ 440	$ 174
Treasury Stock, at Cost | Accelerated Share Repurchase Program [Member]
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock- shares	2.8	0.3							3.1
Treasury stock acquired accelerated share repurchase, final purchase price, per share									$ 81.04
Stockholders' equity, decrease		$ 38								$ 212