v3.22.2.2
Share-based compensation - Summary of Options Outstanding and Exercisable by Range of Exercise Price (Detail)
shares in Thousands
 12 Months Ended
Oct. 31, 2022
shares
$ / shares
Oct. 31, 2021
shares
$ / shares
Oct. 31, 2020
shares
$ / shares
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 7,509 7,055 6,973
Options outstanding, weighted average exercise price | $ / shares $ 100.07 $ 92.27 $ 86.02
Options outstanding, weighted average remaining contractual life (in years) 5 years 10 months 28 days    
Options exercisable, number | shares 3,502 3,273  
Options exercisable, weighted average exercise price | $ / shares $ 87.15 $ 80.38  
$48.22 – $74.39 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 890    
Options outstanding, weighted average exercise price | $ / shares $ 70.05    
Options outstanding, weighted average remaining contractual life (in years) 2 years 3 months 21 days    
Options exercisable, number | shares 890    
Options exercisable, weighted average exercise price | $ / shares $ 70.05    
$78.28 – $90.23 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 1,409    
Options outstanding, weighted average exercise price | $ / shares $ 86.99    
Options outstanding, weighted average remaining contractual life (in years) 3 years 6 months 14 days    
Options exercisable, number | shares 1,409    
Options exercisable, weighted average exercise price | $ / shares $ 86.99    
$96.55 – $102.33 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 1,743    
Options outstanding, weighted average exercise price | $ / shares $ 98.9    
Options outstanding, weighted average remaining contractual life (in years) 5 years 2 months 8 days    
Options exercisable, number | shares 1,203    
Options exercisable, weighted average exercise price | $ / shares $ 99.96    
$104.70 – $106.00 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 2,299    
Options outstanding, weighted average exercise price | $ / shares $ 105.4    
Options outstanding, weighted average remaining contractual life (in years) 7 years 7 months 28 days    
$129.99 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 1,168    
Options outstanding, weighted average exercise price | $ / shares $ 129.99    
Options outstanding, weighted average remaining contractual life (in years) 9 years 1 month 13 days