v3.24.3
Share-based compensation - Summary of Options Outstanding and Exercisable by Range of Exercise Price (Detail)
shares in Thousands
 12 Months Ended
Oct. 31, 2024
shares
$ / shares
Oct. 31, 2023
shares
$ / shares
Oct. 31, 2022
shares
$ / shares
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 7,375 7,767 7,509
Options outstanding, weighted average exercise price | $ / shares $ 113 $ 106.01 $ 100.07
Options outstanding, weighted average remaining contractual life (in years) 6 years 1 month 20 days    
Options exercisable, number | shares 3,212 3,830  
Options exercisable, weighted average exercise price | $ / shares $ 97.02 $ 91.84  
$73.14 – $90.23 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 932    
Options outstanding, weighted average exercise price | $ / shares $ 83.87    
Options outstanding, weighted average remaining contractual life (in years) 1 year 7 months 20 days    
Options exercisable, number | shares 932    
Options exercisable, weighted average exercise price | $ / shares $ 83.87    
$96.55 – $102.33 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 994    
Options outstanding, weighted average exercise price | $ / shares $ 98.76    
Options outstanding, weighted average remaining contractual life (in years) 3 years 6 months 18 days    
Options exercisable, number | shares 994    
Options exercisable, weighted average exercise price | $ / shares $ 98.76    
$104.70 – $106.00 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 1,862    
Options outstanding, weighted average exercise price | $ / shares $ 105.44    
Options outstanding, weighted average remaining contractual life (in years) 5 years 8 months 8 days    
Options exercisable, number | shares 1,286    
Options exercisable, weighted average exercise price | $ / shares $ 105.19    
$125.37 – $125.37 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 1,553    
Options outstanding, weighted average exercise price | $ / shares $ 125.37    
Options outstanding, weighted average remaining contractual life (in years) 9 years 1 month 13 days    
$129.99 – $131.64 [Member]      
Disclosure of Range of Exercise Prices of Outstanding Share Options [Line Items]      
Options outstanding, number | shares 2,034    
Options outstanding, weighted average exercise price | $ / shares $ 130.77    
Options outstanding, weighted average remaining contractual life (in years) 7 years 7 months 2 days