Share-Based Payments - Schedule of Weighted-average Assumptions Used for Determination of Fair Values of Stock Options (Detail)	12 Months Ended
Oct. 31, 2025 yr $ / shares	Oct. 31, 2024 yr $ / shares
Two thousand and twenty five stock options [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Risk-free interest rate %	2.77%
Expected dividend yield	4.88%
Expected price volatility	19.33%
Expected life of option \| yr	6.84
Weighted-average fair value \| $ / shares	$ 8.07
Two thousand and twenty four stock options [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Risk-free interest rate %		3.26%
Expected dividend yield		4.47%
Expected price volatility		19.76%
Expected life of option \| yr		6.9
Weighted-average fair value \| $ / shares		$ 7.68

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
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-URIDate 2024-03-27

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- Definition

The option life of share options granted.

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

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