The amount of residual interest in the assets of the entity after deducting all its liabilities.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Subsequent events - Additional Information (Detail) $ / shares in Units, $ in Millions, $ in Millions	Nov. 01, 2024 USD ($) $ / shares	Oct. 31, 2024 CAD ($)	Oct. 31, 2023 CAD ($)
Disclosure of non-adjusting events after reporting period [line items]
Shares issued value		$ 127,192	$ 115,147
Series Bx Non cumulative 5year rate Reset First Preferred Shares [Member] \| Non-adjusting share transaction events after reporting period [member] \| Consolidated Limited Recourse Trust [Member]
Disclosure of non-adjusting events after reporting period [line items]
Shares issued price per share \| $ / shares	$ 1,000
Shares issued value	$ 1,000
Limited Recourse Capital Notes Series Five [Member] \| Non-adjusting share transaction events after reporting period [member] \| Consolidated Limited Recourse Trust [Member]
Disclosure of non-adjusting events after reporting period [line items]
Shares issued price per share \| $ / shares	$ 1,000
Shares issued value	$ 1,000
First Preferred Shares Conversion Formula	LRCN Series 5 bear interest at a fixed rate of 6.35% per annum until November 24, 2034, and thereafter at a rate per annum, reset every fifth year, equal to the 5-year U.S. Treasury Rate plus 2.257% until maturity on November 24, 2084.