Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
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-Paragraph 3
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (d)
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
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-Name Accounting Standards Codification
-Section 50
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REVENUE Capitalized Contractual Cost (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
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Amortization	$ 17	$ 13	$ 46	$ 43
Other Assets [Member]
Capitalized Contract Cost [Line Items]
Capitalized Contract Cost, Net	$ 37		$ 37		$ 35