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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details 2) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Fair Value Measurements    
Amount of transfer of assets out of Level 1 into Level 2 $ 0  
Amount of transfer of assets out of Level 2 into Level 1 0  
Amount of transfer of liabilities out of Level 1 into Level 2 0  
Amount of transfer of liabilities out of Level 2 into Level 1 0  
Recurring basis | Level 1
   
Fair Value Measurements    
Fair value of asset 2 2
Fair value of liability $ 2 $ 2