XML 60 R50.htm IDEA: XBRL DOCUMENT
v3.25.2

Fair Value Measurement - Fair Value of Financial Instruments (Detail) - CAD ($) $ in Millions | Jul. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Financial assets |  |  |
Securities |  | $ 274,997 | $ 254,345
Cash collateral on securities borrowed |  | 21,690 | 17,028
Securities purchased under resale agreements |  | 86,210 | 83,721
Loans |  |  |
Residential mortgages |  | 285,935 | 280,672
Credit card |  | 21,321 | 20,551
Business and government | [1] | 231,414 | 214,305
Derivative instruments |  | 34,614 | 36,435
Deposits |  |  |
Bank |  | 27,061 | 20,009
Derivative instruments |  | 36,552 | 40,654
Obligations related to securities sold short |  | 20,827 | 21,642
Obligations related to securities sold under repurchase agreements |  | 145,659 | 110,153
Subordinated indebtedness |  | 7,699 | 7,465
Financial assets at amortised cost [member] |  |  |
Financial assets |  |  |
Cash and deposits with banks |  | 55,187 | 48,064
Securities |  | 68,812 | 71,610
Cash collateral on securities borrowed |  | 21,690 | 17,028
Securities purchased under resale agreements |  | 63,930 | 58,744
Loans |  |  |
Residential mortgages |  | 285,375 | 280,220
Personal |  | 46,181 | 45,739
Credit card |  | 20,459 | 19,649
Business and government |  | 229,165 | 212,460
Other assets |  | 19,776 | 20,121
Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member] |  |  |
Financial assets |  |  |
Securities |  | 122,092 | 106,042
Securities purchased under resale agreements |  | 22,280 | 24,977
Loans |  |  |
Residential mortgages |  | 5 | 3
Business and government |  | 379 | 116
Derivative instruments |  | 34,614 | 36,435
Other assets |  | 610 | 364
Financial assets at fair value through profit or loss, designated upon initial recognition or subsequently, category [member] |  |  |
Loans |  |  |
Business and government |  | 80 | 105
Financial assets at fair value through OCI [member] |  |  |
Financial assets |  |  |
Securities |  | 84,093 | 76,693
Carrying value [member] |  |  |
Financial assets |  |  |
Cash and deposits with banks |  | 55,187 | 48,064
Securities |  | 274,997 | 254,345
Cash collateral on securities borrowed |  | 21,690 | 17,028
Securities purchased under resale agreements |  | 86,210 | 83,721
Loans |  |  |
Residential mortgages |  | 285,380 | 280,223
Personal |  | 46,181 | 45,739
Credit card |  | 20,459 | 19,649
Business and government |  | 229,624 | 212,681
Derivative instruments |  | 34,614 | 36,435
Other assets |  | 20,386 | 20,485
Financial liabilities at amortised cost [member] |  |  |
Deposits |  |  |
Personal |  | 237,579 | 235,593
Business and government |  | 426,140 | 414,441
Bank |  | 27,061 | 20,009
Secured borrowings |  | 59,634 | 55,285
Cash collateral on securities lent |  | 5,304 | 7,997
Obligations related to securities sold under repurchase agreements |  | 134,851 | 100,407
Other liabilities |  | 19,799 | 20,657
Subordinated indebtedness |  | 7,699 | 7,465
Financial liabilities at fair value through profit or loss, mandatorily measured at fair value, category [member] |  |  |
Deposits |  |  |
Derivative instruments |  | 36,552 | 40,654
Obligations related to securities sold short |  | 20,827 | 21,642
Other liabilities |  | 175 | 158
Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently [member] |  |  |
Deposits |  |  |
Personal |  | 18,556 | 17,301
Business and government |  | 22,721 | 21,058
Secured borrowings |  | 981 | 1,170
Obligations related to securities sold under repurchase agreements |  | 10,808 | 9,746
Other liabilities |  | 21 | 19
Carrying value [member] |  |  |
Deposits |  |  |
Personal |  | 256,135 | 252,894
Business and government |  | 448,861 | 435,499
Bank |  | 27,061 | 20,009
Secured borrowings |  | 60,615 | 56,455
Derivative instruments |  | 36,552 | 40,654
Obligations related to securities sold short |  | 20,827 | 21,642
Cash collateral on securities lent |  | 5,304 | 7,997
Obligations related to securities sold under repurchase agreements |  | 145,659 | 110,153
Other liabilities |  | 19,995 | 20,834
Subordinated indebtedness |  | 7,699 | 7,465
Financial assets at fair value [member] |  |  |
Financial assets |  |  |
Cash and deposits with banks |  | 55,187 | 48,064
Securities |  | 274,660 | 253,437
Cash collateral on securities borrowed |  | 21,690 | 17,028
Securities purchased under resale agreements |  | 86,210 | 83,721
Loans |  |  |
Residential mortgages |  | 285,398 | 279,805
Personal |  | 46,207 | 45,750
Credit card |  | 20,476 | 19,682
Business and government |  | 229,671 | 212,750
Derivative instruments |  | 34,614 | 36,435
Other assets |  | 20,386 | 20,485
Financial assets fair value over (under) carrying value [member] |  |  |
Financial assets |  |  |
Securities |  | (337) | (908)
Loans |  |  |
Residential mortgages |  | 18 | (418)
Personal |  | 26 | 11
Credit card |  | 17 | 33
Business and government |  | 47 | 69
Financial liabilities at fair value [member] |  |  |
Deposits |  |  |
Personal |  | 256,397 | 253,378
Business and government |  | 449,763 | 436,528
Bank |  | 27,061 | 20,009
Secured borrowings |  | 60,784 | 56,588
Derivative instruments |  | 36,552 | 40,654
Obligations related to securities sold short |  | 20,827 | 21,642
Cash collateral on securities lent |  | 5,304 | 7,997
Obligations related to securities sold under repurchase agreements |  | 145,659 | 110,153
Other liabilities |  | 19,995 | 20,834
Subordinated indebtedness |  | 7,966 | 7,698
Financial liabilities, fair value over (under) carrying value [member] |  |  |
Deposits |  |  |
Personal |  | 262 | 484
Business and government |  | 902 | 1,029
Secured borrowings |  | 169 | 133
Subordinated indebtedness |  | $ 267 | $ 233
[1] | Includes customers’ liability under acceptances of $8 million (October 31, 2024: $6 million) in business and government loans and acceptances of $8 million (October 31, 2024: $6 million) in other liabilities. Prior period amounts have been revised to conform to the presentation adopted in the first quarter of 2025.

X
- Definition Associated ​liabilities ​that​ entity​ continues​ to recognise on secured borrowings. + References No definition available. + Details
Name: | cm_AssociatedLiabilitiesThatEntityContinuesToRecogniseOnSecuredBorrowing
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Cash and cash equivalents and interest-bearing deposits with banks. + References No definition available. + Details
Name: | cm_CashAndDepositsWithBanks
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Cash collateral on securities borrowed. + References No definition available. + Details
Name: | cm_CashCollateralOnSecuritiesBorrowed
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of deposit liabilities held by the entity + References No definition available. + Details
Name: | cm_DepositLiabilitiesHeldByTheEntity
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deposits 1. + References No definition available. + Details
Name: | cm_Deposits1Abstract
Namespace Prefix: | cm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deposits from customer's net. + References No definition available. + Details
Name: | cm_DepositsFromCustomersNet
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Financial assets securities. + References No definition available. + Details
Name: | cm_FinancialAssetsSecurities
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans. + References No definition available. + Details
Name: | cm_LoansAbstract
Namespace Prefix: | cm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loans to business and government. + References No definition available. + Details
Name: | cm_LoansToBusinessAndGovernment
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Obligations related to securities sold short. + References No definition available. + Details
Name: | cm_ObligationsRelatedToSecuritiesSoldShort
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Obligations related to securities sold under repurchase agreements. + References No definition available. + Details
Name: | cm_ObligationsRelatedToSecuritiesSoldUnderRepurchaseAgreements
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Personal loans. + References No definition available. + Details
Name: | cm_PersonalLoans
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Residential mortgage loans. + References No definition available. + Details
Name: | cm_ResidentialMortgageLoans
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Securities purchased under resale agreements. + References No definition available. + Details
Name: | cm_SecuritiesPurchasedUnderResaleAgreements
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of credit card loans made by the entity. + 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
Name: | ifrs-full_CreditCardLoans
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of deposit liabilities from banks held by the entity. + 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
Name: | ifrs-full_DepositsFromBanks
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + 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
Name: | ifrs-full_DerivativeFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + 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
Name: | ifrs-full_DerivativeFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_OtherFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph m -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_m&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_OtherFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of instruments sold with the intent to reacquire in repurchase agreements and cash collateral on securities lent. + 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
Name: | ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of liabilities that are subordinate to other liabilities with respect to claims. + 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
Name: | ifrs-full_SubordinatedLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=cm_CarryingValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialLiabilitiesAxis=ifrs-full_FinancialLiabilitiesAtAmortisedCostCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialLiabilitiesAxis=cm_FinancialLiabilitiesAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialLiabilitiesAxis=ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfFinancialLiabilitiesAxis=cm_CarryingValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_FinancialAssetsAtFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=cm_FinancialAssetsFairValueOverUnderCarryingValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=ifrs-full_FinancialLiabilitiesAtFairValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=cm_FinancialLiabilitiesFairValueOverUnderCarryingValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |