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Inventories
6 Months Ended
Apr. 30, 2012
Inventory Disclosure [Abstract]  
Inventories
Inventories
The components of inventories are as follows:
 
As of
 
April 30,
2012
 
October 31,
2011
(in millions)
 
 
 
Finished products
$
1,039

 
$
873

Work in process
170

 
174

Raw materials
739

 
667

Total inventories
$
1,948

 
$
1,714