Assets recognized in entity's financial statements in relation to consolidated structured entities.

No definition available.

Name:	bns_AssetsRecognizedInEntitysFinancialStatementsInRelationToConsolidatedStructuredEntities
Namespace Prefix:	bns_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Auto loan receivables securitization trust outstanding.

+ References

No definition available.

+ Details

Name:	bns_AutoLoanReceivablesSecuritizationTrustOutstanding
Namespace Prefix:	bns_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Covered bonds outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	bns_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Subordinated notes outstanding.

+ References

No definition available.

+ Details

Name:	bns_SubordinatedNotesOutstanding
Namespace Prefix:	bns_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of instruments issued by the entity that represent indebtedness.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Classes of contingent liabilities [domain]; Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 14
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_14_a&doctype=Standard
-URIDate 2024-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	bns_BalanceSheetLocationAxis=bns_GuaranteedLinkedNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_LoansAndReceivablesCategoryMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ConsolidatedStructuredEntitiesAxis=bns_ScotiabankCoveredBondGuarantorLimitedPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	bns_BalanceSheetLocationAxis=bns_DepositsFromBusinessAndGovernmentMember
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Data Type:	na
Balance Type:
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- Details

Name:	ifrs-full_CategoriesOfFinancialAssetsAxis=bns_UninsuredResidentialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
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- Details

Name:	ifrs-full_ConsolidatedStructuredEntitiesAxis=bns_TrilliumcreditCardTrustIiMember
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Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
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- Details

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Namespace Prefix:
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Structured Entities - Consolidated Structured Entities - Additional Information (Detail) $ in Millions, $ in Millions	Oct. 31, 2025 CAD ($)	Oct. 31, 2025 USD ($)	Oct. 31, 2024 CAD ($)	Oct. 31, 2024 USD ($)
Disclosure of information about consolidated structured entities [line items]
Assets pledged	$ 308,176		$ 255,401
Auto loan receivables securitization trust outstanding	423	$ 301	0
Guarantee-linked notes [member]
Disclosure of information about consolidated structured entities [line items]
Debt instruments issued	1,697		1,002
Loans and receivables, category [member]
Disclosure of information about consolidated structured entities [line items]
Assets pledged	4,488		0
Scotiabank covered bond guarantor limited partnership [member] \| Deposits From Business And Government [Member]
Disclosure of information about consolidated structured entities [line items]
Covered bond outstanding	46,700		47,000
Scotiabank covered bond guarantor limited partnership [member] \| Guarantee-linked notes [member]
Disclosure of information about consolidated structured entities [line items]
Debt instruments issued	8,400		5,500
Scotiabank covered bond guarantor limited partnership [member] \| Uninsured residential mortgage backed securities [member]
Disclosure of information about consolidated structured entities [line items]
Assets pledged	44,800		48,000
Halifax receivables trust [member] \| Unsecured personal line of credit receivables [member] \| Deposits From Business And Government [Member]
Disclosure of information about consolidated structured entities [line items]
Assets pledged	274	196	291	$ 209
Subordinated notes outstanding	3,200	$ 2,300	3,300	$ 2,400
Trillium credit card trust II [member] \| Credit card receivable [member]
Disclosure of information about consolidated structured entities [line items]
Assets pledged	3,600		3,800
U.S. multi-seller conduit [Member] \| Business and government loans [Member]
Disclosure of information about consolidated structured entities [line items]
Assets recognized in entity's financial statements in relation to consolidated structured entities	$ 14,000		$ 11,000