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PROVISION FOR INCOME TAXES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2012
Jul. 31, 2011
Provision For Income Taxes [Abstract]        
Provision (benefit) for income taxes $ (5) $ (49) $ 59 $ 16
Net discrete tax benefit 27 72 13 55
Valuation allowance related to deferred tax assets 338   338  
Domestic Jurisdictions [Member]
       
Income Tax Contingency [Line Items]        
Valuation allowance related to U.S. Jurisdiction $ 271   $ 271