GOODWILL AND OTHER INTANGIBLE ASSETS (Disclosures and Components of Purchased Other Intangibles) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024	Oct. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross carrying amount	$ 2,075		$ 2,075		$ 2,039
Accumulated Amortization and impairments	1,574		1,574		1,477
Amortizable intangible assets, Net book value	501		501		562
Amortization of Intangible Assets	33	$ 31	97	$ 106
In Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	23		23		45
Developed technology
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross carrying amount	1,413		1,413		1,377
Accumulated Amortization and impairments	1,075		1,075		1,018
Amortizable intangible assets, Net book value	338		338		359
Backlog
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross carrying amount	37		37		37
Accumulated Amortization and impairments	30		30		25
Amortizable intangible assets, Net book value	7		7		12
Trademark/Tradename
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross carrying amount	38		38		38
Accumulated Amortization and impairments	38		38		36
Amortizable intangible assets, Net book value	0		0		2
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross carrying amount	587		587		587
Accumulated Amortization and impairments	431		431		398
Amortizable intangible assets, Net book value	$ 156		156		$ 189
In Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Period Increase (Decrease)			$ 22