Annual report [Section 13 and 15(d), not S-K Item 405]

Note 13 - Stock-based Compensation - Summarize Stock Option Activity (Details)

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Note 13 - Stock-based Compensation - Summarize Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Options outstanding, Number (in shares) 430,103  
Outstanding stock options, Weighted average grant date fair value (in dollars per share) $ 3.98  
Options outstanding, Weighted average exercise price (in dollars per share) $ 4.59  
Outstanding stock options, aggregate intrinsic value $ 734 $ 587
Granted, Number (in shares) 106,220  
Granted, Weighted average grant date fair value (in dollars per share) $ 6.67  
Granted, Weighted average exercise price (in dollars per share) $ 0.01  
Forfeited, Number (in shares) (125,487)  
Forfeited, Weighted average grant date fair value (in dollars per share) $ 4.35  
Forfeited, Weighted average exercise price (in dollars per share) $ 3.63  
Exercised, Number (in shares) (295,796)  
Exercised, Weighted average grant date fair value (in dollars per share) $ 3.58  
Exercised, Weighted average exercise price (in dollars per share) $ 5.13  
Options outstanding, Number (in shares) 115,040  
Outstanding stock options, Weighted average grant date fair value (in dollars per share) $ 7.1  
Options outstanding, Weighted average exercise price (in dollars per share) $ 0.01