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Selected Current Liabilities (Tables)
May 31, 2011
Selected Current Liabilities (Tables) Abstract  
Selected Current Liabilities
   May 31,
   2011 2010
Accrued Salaries and Employee Benefits     
 Salaries$ 256 $ 230
 Employee benefits, including     
  variable compensation  468   386
 Compensated absences  544   530
   $ 1,268 $ 1,146
        
Accrued Expenses     
 Self-insurance accruals$ 696 $ 675
 Taxes other than income taxes  357   347
 Other  841   693
   $ 1,894 $ 1,715