FAIR VALUE MEASUREMENTS, Fair value measures and impairment of long-lived assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Long-Lived Assets [Abstract]    
Impairment long-lived assets held and used $ 0 $ 0
Impairment of long-lived assets held for sale $ 0 $ 0