REVENUE - Revenue by Type (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,878	$ 1,738	$ 5,511	$ 5,087
Instrumentation
Disaggregation of Revenue [Line Items]
Net revenue	643	599	1,919	1,774
Non-Instrumentation and Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,235	$ 1,139	$ 3,592	$ 3,313

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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