GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($) $ in Millions	Jan. 31, 2018	Oct. 31, 2017
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	$ 1,217	$ 1,206
Accumulated Amortization	876	845
Net Book Value	341	361
Purchased Technology
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	863	855
Accumulated Amortization	665	646
Net Book Value	198	209
Trademark/Tradenames
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	149	149
Accumulated Amortization	76	73
Net Book Value	73	76
Customer Relationships
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	153	151
Accumulated Amortization	119	112
Net Book Value	34	39
Third-Party Technology and Licenses
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	27	27
Accumulated Amortization	16	14
Net Book Value	11	13
Total amortizable intangible assets
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	1,192	1,182
Accumulated Amortization	876	845
Net Book Value	316	337
In-Process R&D
Indefinite-Lived Intangible Assets (Excluding Goodwill)
In-Process R&D	$ 25	$ 24