XML 201 R149.htm IDEA: XBRL DOCUMENT
v3.25.3

Goodwill and Other Intangible Assets - Summary of Changes In The Carrying Amounts of Goodwill By Groups of Cash Generating Units (Parenthetical) (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2025 | Oct. 31, 2024
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |
Impairment loss recognised in profit or loss, goodwill | $ 0 |
Colombia Costa Rica And Panama [Member] | Latin America [Member] |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |
Impairment loss recognised in profit or loss, goodwill | $ 589 |
CrediScotia Financiera SA [Member] | Latin America [Member] |  |
Disclosure of impairment loss recognised or reversed for cash-generating unit [line items] |  |
Impairment loss recognised in profit or loss, goodwill |  | $ 92

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

X
- Definition The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph d -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_d_v&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bns_DivestituresAxis=bns_ColombiaCostaRicaAndPanamaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=srt_LatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bns_DivestituresAxis=bns_CrediscotiaFinancieraSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |