Stock Plans - Schedule of Compensation Expense and Related Income Tax Benefit for Share-Based Awards (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 36.3	$ 43.2	$ 37.2
Related income tax benefit	5.1	8.8	11.4
Selling, general and administrative expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	28.7	37.6	33.1
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	4.7	3.6	2.8
Research and development expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 2.9	$ 2.0	$ 1.3