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Receivables, Net (Tables)
9 Months Ended
Sep. 30, 2011
Receivables, Net [Abstract] 
Receivables, Net
                 
    September 30,
 		       
    2011     December 31, 2010  
Trade accounts receivable
  $ 1,662     $ 1,579  
Unbilled contract receivables
    543       367  
Other
    43       47  
                 
Receivables, gross
    2,248       1,993  
Allowance for doubtful accounts
    (43 )     (42 )
Allowance for cash discounts
    (7 )     (7 )
                 
Receivables, net
  $ 2,198     $ 1,944