GOODWILL AND OTHER INTANGIBLE ASSETS Disclosures and Components of Purchased Other Intangibles (Details) - USD ($) $ in Millions	Apr. 30, 2021	Oct. 31, 2020
Finite-Lived Intangible Assets, Net
Total Intangible Assets	$ 2,247	$ 1,976
Accumulated Amortization	1,242	1,145
Net Book Value	1,005	831
Purchased Technology
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	1,661	1,429
Accumulated Amortization	916	863
Net Book Value	745	566
Backlog
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	8
Accumulated Amortization	0
Net Book Value	8
Trademark/Tradenames
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	196	196
Accumulated Amortization	125	117
Net Book Value	71	79
Customer Relationships
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	360	330
Accumulated Amortization	193	158
Net Book Value	167	172
Third-Party Technology and Licenses
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	11	11
Accumulated Amortization	8	7
Net Book Value	3	4
Total amortizable intangible assets
Finite-Lived Intangible Assets, Net
Gross Carrying Amount	2,236	1,966
Accumulated Amortization	1,242	1,145
Finite-Lived Intangible Assets, Net	994	821
In-Process R&D
Indefinite-Lived Intangible Assets (Excluding Goodwill)
In-Process R&D	$ 11	$ 10