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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Sep. 30, 2011
Summary of Significant Accounting Policies [Abstract] 
Carrying amounts and classification of assets and liabilities for consolidated VIE's
                 
    September 30,  
    2011     2010  
Current assets
  $ 207     $ 215  
Noncurrent assets
    55       69  
 
           
Total assets
  $ 262     $ 284  
 
           
 
               
Current liabilities
  $ 144     $ 174  
Noncurrent liabilities
           
 
           
Total liabilities
  $ 144     $ 174