STOCKHOLDERS’ EQUITY AND REDEEMABLE NONCONTROLLING INTEREST (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jul. 01, 2015
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Dividends per common share	$ 0.53	$ 0.53	$ 0.50	$ 0.50	$ 0.50
Share repurchase authorization remaining available	$ 542
Purchases of treasury stock, value	$ 50				$ 50
Reissuance of shares for employee benefit plan	0.4				0.6
UMass Joint Venture [Member]
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners						18.90%
Treasury Stock, at Cost [Member]
Schedule of Stockholders' Equity and Redeemable Noncontrolling Interest [Line Items]
Purchases of treasury stock- shares	0.6				0.5
Purchases of treasury stock, value	$ 50				$ 50