CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES - MATURITIES (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Cost Basis [Abstract]
Due in one year or less	$ 211
Due after one year through five years	898
Due after five years through 10 years	10
Due after 10 years	0
Marketable securities, Cost Basis	1,119	1,030
Fair Value [Abstract]
Due in one year or less	212
Due after one year through five years	908
Due after five years through 10 years	10
Due after 10 years	0
Marketable securities, Fair Value	$ 1,130	$ 1,039