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RECEIVABLES, NET (Tables)
 6 Months Ended
Jun. 30, 2011
RECEIVABLES, NET [Abstract]  
Receivables, Net
RECEIVABLES, NET

   
As of
 
   
June 30,
  
December 31,
 
 (in millions)                                                         
 
2011
  
2010
 
        
Trade receivables
 $987  $1,074 
Miscellaneous receivables
  123   122 
  Total (net of allowances of $74 and $77 as of June 30, 2011 and December 31, 2010,  
    respectively)       
 $1,110  $1,196