STOCKHOLDERS’ EQUITY AND REDEEMABLE NONCONTROLLING INTEREST (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	2 Months Ended	3 Months Ended	5 Months Ended	12 Months Ended
	Jun. 30, 2016	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 11, 2016	Mar. 31, 2016	Sep. 30, 2015	Jul. 01, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	May 04, 2006	May 03, 2006
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Preferred stock, par value				$ 1.00
Preferred stock, shares outstanding				0
Common stock, par value				$ 0.01	$ 0.01											$ 0.01
Common stock, shares authorized				600,000,000	600,000,000											600,000,000	300,000,000
Dividend program	$ 0.40	$ 0.40	$ 0.40		$ 0.38	$ 0.33	$ 0.45	$ 0.40	$ 0.38		$ 0.38	$ 0.38	$ 0.33	$ 0.33	$ 0.33
Dividends per common share				$ 1.65	$ 1.52	$ 1.32
Stock repurchase program, remaining authorized repurchase amount				$ 1,400
Treasury stock value acquired cost method				$ 590	$ 224	$ 132
Reissuance of shares for employee benefit plan				2,000,000	1,000,000	2,000,000
Sale of noncontrolling interest in subsidiary				$ 0	$ 63	$ 0
UMass Joint Venture [Member]
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners										18.90%
Consideration										$ 68
Redeemable noncontrolling interest				$ 77	70
Treasury Stock, at Cost
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock, shares				7,400,000
Treasury stock value acquired cost method				$ 590	224	$ 132
Share Repurchases Open Market [Member]
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Additional authorized amount				$ 1,000	$ 500
Purchases of treasury stock, shares					3,200,000	2,200,000
Treasury stock value acquired cost method					$ 224	$ 132
Accelerated Share Repurchase Program [Member]
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Treasury stock value acquired cost method			$ 250
Accelerated Share Repurchase Program [Member] | Treasury Stock, at Cost
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock, shares	2,800,000	300,000	3,100,000
Treasury stock acquired accelerated share repurchase, final purchase price, per share			$ 81.04
Maximum [Member]
Stockholders’ Equity and Redeemable Noncontrolling Interest [Line Items]
Preferred stock, shares authorized				10,000,000