Share-Based Compensation - Schedule of Compensation Expense and Related Income Tax Benefit For Share-Based Awards (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2026	Apr. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 15.5	$ 20.3	$ 34.7	$ 39.1
Related income tax benefit	2.3	2.8	4.8	5.7
Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	13.2	18.5	30.3	35.2
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1.7	1.2	3.2	2.5
Research and development expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 0.6	$ 0.6	$ 1.2	$ 1.4

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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+ Details