v3.22.2.2
Share-based compensation - Summary of Stock Option Activity and Related Information (Detail)
shares in Thousands
 12 Months Ended
Oct. 31, 2022
shares
$ / shares
Oct. 31, 2021
shares
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [abstract]    
Number of options, outstanding at beginning of year | shares 7,055 6,973
Number of options, granted | shares 1,184 1,251
Number of options, exercised | shares (684) (1,150)
Number of options, forfeited in the year | shares (46) (19)
Number of options, outstanding at end of year | shares 7,509 7,055
Number of options, exercisable at end of year | shares 3,502 3,273
Weighted average exercise price, outstanding at beginning of year | $ / shares $ 92.27 $ 86.02
Weighted average exercise price, granted | $ / shares 129.99 106
Weighted average exercise price, exercised | $ / shares 73.98 65.56
Weighted average exercise price, forfeited in the year | $ / shares 104.28 93.23
Weighted average exercise price, outstanding at end of year | $ / shares 100.07 92.27
Weighted average exercise price, exercisable at end of year | $ / shares $ 87.15 $ 80.38