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Property, Plant and Equipment
12 Months Ended
Sep. 30, 2011
Property, Plant and Equipment [Abstract] 
PROPERTY, PLANT AND EQUIPMENT
4.   PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following (in millions):
                 
    September 30,  
    2011     2010  
Buildings and improvements
  $ 2,488     $ 2,161  
Machinery and equipment
    7,205       6,342  
Construction in progress
    1,419       752  
Land
    360       366  
 
           
Total property, plant and equipment
    11,472       9,621  
Less accumulated depreciation
    (5,856 )     (5,525 )
 
           
Property, plant and equipment — net
  $ 5,616     $ 4,096  
 
           
Interest costs capitalized during the fiscal years ended September 30, 2011, 2010 and 2009 were $34 million, $21 million and $16 million, respectively. Accumulated depreciation related to capital leases at September 30, 2011 and 2010 was $44 million and $48 million, respectively.