GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2017
Oct. 31, 2016
Finite-Lived Intangible Assets, Net [Abstract]    
Finite-Lived Intangible Assets, Gross $ 1,082 $ 398
Finite-Lived Intangible Assets, Accumulated Amortization 231 202
Finite-Lived Intangible Assets, Net 851 196
Indefinite-Lived Intangible Assets (Excluding Goodwill) 67 12
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) 0 0
Intangible Assets, Gross (Excluding Goodwill) 1,149 410
Intangible Assets, Net (Excluding Goodwill) 918 208
Developed technology    
Finite-Lived Intangible Assets, Net [Abstract]    
Finite-Lived Intangible Assets, Gross 735 309
Finite-Lived Intangible Assets, Accumulated Amortization 180 159
Intangible Assets, Net (Excluding Goodwill) 555 150
Backlog    
Finite-Lived Intangible Assets, Net [Abstract]    
Finite-Lived Intangible Assets, Gross 14 4
Finite-Lived Intangible Assets, Accumulated Amortization 6 4
Intangible Assets, Net (Excluding Goodwill) 8 0
Trademark/Tradename    
Finite-Lived Intangible Assets, Net [Abstract]    
Finite-Lived Intangible Assets, Gross 32 20
Finite-Lived Intangible Assets, Accumulated Amortization 5 4
Intangible Assets, Net (Excluding Goodwill) 27 16
Customer relationships    
Finite-Lived Intangible Assets, Net [Abstract]    
Finite-Lived Intangible Assets, Gross 301 65
Finite-Lived Intangible Assets, Accumulated Amortization 40 35
Intangible Assets, Net (Excluding Goodwill) $ 261 $ 30