CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES - MATURITIES (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Cost Basis [Abstract]
Due in one year or less	$ 182
Due after one year through five years	1,070
Due after five years through 10 years	5
Due after 10 years	0
Marketable securities, Cost Basis	1,257	$ 1,260
Fair Value [Abstract]
Due in one year or less	182
Due after one year through five years	1,065
Due after five years through 10 years	5
Due after 10 years	0
Marketable securities, Fair Value	$ 1,252	$ 1,255