OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Y
M
Jan. 31, 2014
Oct. 31, 2014
Accounting Policies [Abstract]      
Fair value of long term debt in excess of carrying value $ 45   $ 53
Goodwill and Purchased Intangible Assets      
Purchased intangible assets useful life range minimum (in months) 6    
Purchased intangible assets useful life range maximum (in years) 15    
Impairment of goodwill 0 0  
Impairment of intangible assets (IPR&D) $ 0 $ 0