XML 269 R217.htm IDEA: XBRL DOCUMENT
v3.25.3

Financial Instruments - Risk Management - Summary of Risk Categories of Borrower by Probability Of default (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[2] |  | $ 1,305,445
Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[2] | $ 1,356,328 |
Retail [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1] |  | 539,431
Retail [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1] | 573,162 |
Retail [member] | AIRB portfolio [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[3] |  | 412,645
Retail [member] | AIRB portfolio [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[3] | 442,940 |
Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 145,243
Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 163,826 |
Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 148,919
Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 157,873 |
Retail [member] | AIRB portfolio [member] | Low probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 79,011
Retail [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 75,439 |
Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 25,478
Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 31,463 |
Retail [member] | AIRB portfolio [member] | Medium probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 7,524
Retail [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 5,409 |
Retail [member] | AIRB portfolio [member] | High probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 3,232
Retail [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 6,419 |
Retail [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 2,263
Retail [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | $ 1,298 |
Retail [member] | AIRB portfolio [member] | Default [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] |  | 975
Retail [member] | AIRB portfolio [member] | Default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 100.00% |
Total | [3] | $ 1,213 |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.00% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.0501% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.20% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 1.00% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 3.00% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 10.00% |
Retail [member] | Bottom of range [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 20.00% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.05% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.1999% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 0.9999% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 2.9999% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 9.9999% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 19.9999% |
Retail [member] | Top of range [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Probability of default range percentage | [3] | 99.9999% |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | $ 244,737 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 89,983 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 95,370 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 43,971 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 11,436 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 7 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 3,177 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 2 |
Real estate secured mortgages [member] | Retail [member] | AIRB portfolio [member] | Default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 791 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [3] | 83,604 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 57,130 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 19,900 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 5,509 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 938 |
Real estate secured home equity line of credit [member] | Retail [member] | AIRB portfolio [member] | Default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 127 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1] |  | 67,585
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[3] | 82,305 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 15,921 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 36,811 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 14,536 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 9,715 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 2,719 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 1,690 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 785 |
Qualifying revolving [member] | Retail [member] | AIRB portfolio [member] | Default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 128 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1] |  | $ 38,665
Other retail [member] | Retail [member] | AIRB portfolio [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Total | [1],[3] | 32,294 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Exceptionally low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 792 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Very low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 5,792 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 16,932 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Medium low probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 4,803 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Medium probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 2,683 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | High probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 614 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Extremely high probability of default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | 511 |
Other retail [member] | Retail [member] | AIRB portfolio [member] | Default [member] | Revised Basel Three Norms [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Exposure at default | [3] | $ 167 |
[1] | Exposure at default is presented after credit risk mitigation. Exposures exclude equity securities and other assets. Portfolios under the Standardized Approach are reported net of specific allowances for credit losses and net of collateral amounts treated under the Comprehensive Approach.
[2] | Geographic segmentation is based upon the location of the ultimate risk of the credit exposure.
[3] | After credit risk mitigation.

X
- Definition Credit risk exposure at default amount. + References No definition available. + Details
Name: | bns_CreditRiskExposureAtDefaultAmount
Namespace Prefix: | bns_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Default exposure. + References No definition available. + Details
Name: | bns_DefaultExposure
Namespace Prefix: | bns_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Probability of default range percentage. + References No definition available. + Details
Name: | bns_ProbabilityOfDefaultRangePercentage
Namespace Prefix: | bns_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bns_BankingNormsAxis=bns_BaselThreeNormsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bns_BankingNormsAxis=bns_RevisedBaselThreeNormsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CounterpartiesAxis=bns_RetailMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialAssetsAxis=bns_AdvancedInternalRatingsBasedPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_ExceptionallyLowProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_VeryLowProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_LowProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_MediumLowProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_MediumProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_HighProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_ExtremelyHighProbabilityOfDefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ProbabilityOfDefaultAxis=bns_DefaultMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bns_RealEstateSecuredMortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bns_RealEstateSecuredHomeEquityLineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bns_QualifyingRevolvingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=bns_OtherRetailMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |