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RESTRUCTURING AND OTHER RELATED COSTS- Textuals (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Apr. 30, 2025	Jan. 31, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Oct. 31, 2024
Restructuring Cost and Reserve [Line Items]
Income statement expense	$ 56		$ 1	$ 57	$ 4
Employee Severance
Restructuring Cost and Reserve [Line Items]
Income statement expense	56	$ 1
Cash Payments	(5)	(9)
Restructuring Reserve	52	5		52		$ 13
FY23 Restructuring Plan \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Cash Payments	(1)			(2)
FY24 Restructuring Plan \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Income statement expense		1		1
Cash Payments	(3)	(8)
Restructuring Reserve	$ 1	$ 4		$ 1		$ 11