XML 273 R210.htm IDEA: XBRL DOCUMENT
v3.25.3

Offsetting Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities (Detail) - CAD ($) $ in Millions | Oct. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial instruments | $ 162,141 | $ 133,490
Gross amounts offset on the consolidated balance sheet | (21,571) | (2,816)
Net amounts | 140,570 | 130,674
Financial instruments | (24,469) | (21,777)
Securities collateral received | (114,219) | (98,836)
Net amounts | 1,882 | 10,061
Amounts not subject to enforecable netting agreements | 6,174 | 6,510
Net amounts presented on the consolidated balance sheet | 146,744 | 137,184
Gross amounts of recognized financial liabilities | 193,232 | 156,287
Gross amounts offset on the consolidated balance sheet | (21,571) | (2,816)
Net amounts | 171,661 | 153,471
Financial instruments | (24,469) | (21,777)
Securities collateral pledged | (145,480) | (122,379)
Net amounts | 1,712 | 9,315
Amounts not subject to enforecable netting agreements | 5,823 | 5,333
Net amounts presented on the consolidated balance sheet | 177,484 | 158,804
Derivative liabilities [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial liabilities | 35,634 | 35,361
Gross amounts offset on the consolidated balance sheet | (46) | (40)
Net amounts | 35,588 | 35,321
Financial instruments | (24,469) | (21,777)
Securities collateral pledged | (9,494) | (7,842)
Net amounts | 1,625 | 5,702
Amounts not subject to enforecable netting agreements | 5,823 | 5,333
Net amounts presented on the consolidated balance sheet | 41,411 | 40,654
Cash collateral on securities lent [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial liabilities | 6,031 | 7,997
Net amounts | 6,031 | 7,997
Securities collateral pledged | (5,989) | (5,169)
Net amounts | 42 | 2,828
Net amounts presented on the consolidated balance sheet | 6,031 | 7,997
Obligations related to assets sold under repurchase agreements and securities loaned [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial liabilities | 151,567 | 112,929
Gross amounts offset on the consolidated balance sheet | (21,525) | (2,776)
Net amounts | 130,042 | 110,153
Securities collateral pledged | (129,997) | (109,368)
Net amounts | 45 | 785
Net amounts presented on the consolidated balance sheet | 130,042 | 110,153
Derivative assets [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial instruments | 32,224 | 29,965
Gross amounts offset on the consolidated balance sheet | (46) | (40)
Net amounts | 32,178 | 29,925
Financial instruments | (24,469) | (21,777)
Securities collateral received | (6,474) | (4,394)
Net amounts | 1,235 | 3,754
Amounts not subject to enforecable netting agreements | 6,174 | 6,510
Net amounts presented on the consolidated balance sheet | 38,352 | 36,435
Cash collateral securities [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial instruments | 21,697 | 17,028
Net amounts | 21,697 | 17,028
Securities collateral received | (21,161) | (14,432)
Net amounts | 536 | 2,596
Net amounts presented on the consolidated balance sheet | 21,697 | 17,028
Securities purchased under resale agreements [member] |  |
Disclosure of offsetting of financial assets and financial liabilities [Line Items] |  |
Gross amounts of recognized financial instruments | 108,220 | 86,497
Gross amounts offset on the consolidated balance sheet | (21,525) | (2,776)
Net amounts | 86,695 | 83,721
Securities collateral received | (86,584) | (80,010)
Net amounts | 111 | 3,711
Net amounts presented on the consolidated balance sheet | $ 86,695 | $ 83,721

X
- Definition Disclosure of offsetting of financial assets and financial liabilities line items. + References No definition available. + Details
Name: | cm_DisclosureOfOffsettingOfFinancialAssetsAndFinancialLiabilitiesLineItems
Namespace Prefix: | cm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net financial assets not subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position. + References No definition available. + Details
Name: | cm_NetFinancialAssetsNotSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net financial assets subject to and not subject to offsetting, enforceable master netting arrangements or similar agreements. + References No definition available. + Details
Name: | cm_NetFinancialAssetsSubjectToAndNotSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net financial liabilities not subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position. + References No definition available. + Details
Name: | cm_NetFinancialLiabilitiesNotSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Net financial liabilities subject to and not subject to offsetting, enforceable master netting arrangements or similar agreements. + References No definition available. + Details
Name: | cm_NetFinancialLiabilitiesSubjectToAndNotSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | cm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amounts that are subject to an enforceable master netting arrangement or similar agreement and that are not set off against financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amounts that are subject to an enforceable master netting arrangement or similar agreement and that are not set off against financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash collateral pledged that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_ii&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash collateral received that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_ii&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of financial instruments subject to an enforceable master netting arrangement or similar agreement that are not set off against financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of financial instruments subject to an enforceable master netting arrangement or similar agreement that are not set off against financial liabilities. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph IG40D -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_IG40D&doctype=Implementation%20Guidance -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph d -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_d_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of financial assets set off against financial liabilities when an entity: (a) currently has a legally enforceable right to set off the recognised amounts; and (b) intends either to settle on a net basis, or to realise the asset and settle the liability simultaneously. [Refer: Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The gross amount of recognised financial assets that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of financial liabilities set off against financial assets when an entity: (a) currently has a legally enforceable right to set off the recognised amounts; and (b) intends either to settle on a net basis or to realise the asset and settle the liability simultaneously. [Refer: Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The gross amount of recognised financial liabilities that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The net amount of financial assets that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement, presented in the statement of financial position. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The net amount of financial liabilities that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement, presented in the statement of financial position. [Refer: Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 13C -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_13C_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=cm_DerivativeLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=cm_CashCollateralOnSecuritiesLentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=cm_ObligationsRelatedToAssetsSoldUnderRepurchaseAgreementsAndSecuritiesLoanedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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