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INCOME TAXES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Income Tax Disclosure [Abstract]    
Income tax expense $ 16 $ 26
Net discrete tax benefit 11  
Effective income tax rate 8.20% 10.40%
Net Discrete Tax expense   $ 4