XML 170 R118.htm IDEA: XBRL DOCUMENT
v3.25.3

Investment Securities - Schedule of Analysis of Net Gain on Sale of Investment Securities (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2025 | Oct. 31, 2024
Disclosure of financial assets [abstract] |  |
Debt investment securities measured at amortized cost |  | $ 1
Debt investment securities measured at fair value through other comprehensive income (FVOCI) | $ 71 | 47
Net gain on sale of investment securities | $ 71 | $ 48

X
- Definition Fair value gain (loss) recognised in other comprehensive income reclassified. + References No definition available. + Details
Name: | bns_FairValueGainLossRecognisedInOtherComprehensiveIncomeReclassified
Namespace Prefix: | bns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Gain Loss On Sale Of Investment Securities Measured At Amortized Cost. + References No definition available. + Details
Name: | bns_GainLossOnSaleOfInvestmentSecuritiesMeasuredAtAmortizedCost
Namespace Prefix: | bns_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfFinancialAssetsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The gains (losses) on disposals of investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GainsLossesOnDisposalsOfInvestments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration