Quarterly report pursuant to Section 13 or 15(d)

MARKETABLE SECURITIES (Details)

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MARKETABLE SECURITIES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Schedule of Available-for-sale Securities    
Cost $ 195 $ 235
Gross unrealized gains/(losses) 1 12
Estimated fair value 196 247
Debt mutual funds
   
Schedule of Available-for-sale Securities    
Cost 110 139
Gross unrealized gains/(losses) 1 3
Estimated fair value 111 142
Bank debentures
   
Schedule of Available-for-sale Securities    
Cost 22 45
Estimated fair value 22 45
Certificates of deposit
   
Schedule of Available-for-sale Securities    
Cost 59 47
Estimated fair value 59 47
Government debt securities-non-U.S.
   
Schedule of Available-for-sale Securities    
Cost 3 3
Estimated fair value 3 3
Corporate debt securities
   
Schedule of Available-for-sale Securities    
Cost 1 1
Estimated fair value 1 1
Equity securities and other
   
Schedule of Available-for-sale Securities    
Gross unrealized gains/(losses)   9
Estimated fair value   9
Gross realized gains from the sale of available-for-sale securities $ 9