GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($) $ in Millions	Jan. 31, 2020	Oct. 31, 2019
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	$ 2,085	$ 2,086
Accumulated Amortization	1,026	979
Net Book Value	1,059	1,107
Purchased Technology
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	1,412	1,413
Accumulated Amortization	787	763
Net Book Value	625	650
Backlog
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	5	5
Accumulated Amortization	5	5
Net Book Value	0	0
Trademark/Tradenames
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	196	196
Accumulated Amortization	106	102
Net Book Value	90	94
Customer Relationships
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	329	329
Accumulated Amortization	105	87
Net Book Value	224	242
Third-Party Technology and Licenses
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	28	28
Accumulated Amortization	23	22
Net Book Value	5	6
Total amortizable intangible assets
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	1,970	1,971
Accumulated Amortization	1,026	979
Net Book Value	944	992
In-Process R&D
Indefinite-Lived Intangible Assets (Excluding Goodwill)
In-Process R&D	$ 115	$ 115