XML 162 R100.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Insurance and Reinsurance Contract Assets and Liabilities - Actuarial Methods and Assumptions (Detail) - CAD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | $ (2,850) | $ (347) | $ (347) | $ (174) | $ (3,197)
Impact of changes in actuarial methods and assumptions, pre-tax | 2,850 | 347 | 347 | 174 | 3,197
Non-controlling interests |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (97) | (103) | (103) | (215) |
Impact of changes in actuarial methods and assumptions, pre-tax | 97 | 103 | 103 | 215 |
Increase in impact of changes in pre fulfilment cash flows |  |  |  | (389) | (389)
Increase in impact of changes in pre fulfilment cash flows |  |  |  | 389 | 389
Non-controlling interests | CSM |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (87) | (72) | (72) | (215) |
Impact of changes in actuarial methods and assumptions, pre-tax | 87 | 72 | 72 | 215 |
Lapse and policyholder behaviour updates |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 0 | 98 | 98 | (620) | 98
Impact of changes in actuarial methods and assumptions, pre-tax | 0 | (98) | (98) | 620 | (98)
Reinsurance contract and other risk adjustment review |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax |  |  |  | (427) |
Impact of changes in actuarial methods and assumptions, pre-tax |  |  |  | 427 |
Expense updates |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax |  |  |  | 406 |
Impact of changes in actuarial methods and assumptions, pre-tax |  |  |  | (406) |
Financial related updates |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax |  |  |  | 386 |
Impact of changes in actuarial methods and assumptions, pre-tax |  |  |  | (386) |
Mortality and morbidity updates |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 0 | 265 | 265 | 273 | 265
Impact of changes in actuarial methods and assumptions, pre-tax | 0 | (265) | (265) | (273) | (265)
Methodology and other updates |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 0 | (577) | (577) | 156 | (577)
Impact of changes in actuarial methods and assumptions, pre-tax | 0 | 577 | 577 | (156) | 577
Portion recognized in net income (loss) attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (259) | (85) | (85) | 221 | (344)
Impact of changes in actuarial methods and assumptions, pre-tax | 259 | 85 | 85 | (221) | 344
Portion recognized in OCI attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 47 | (146) | (146) | (816) | (99)
Impact of changes in actuarial methods and assumptions, pre-tax | (47) | 146 | 146 | 816 | 99
Portion recognized in CSM |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (2,638) | (116) | (116) | 421 | (2,754)
Impact of changes in actuarial methods and assumptions, pre-tax | 2,638 | 116 | 116 | (421) | 2,754
Canada variable annuity product review |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 0 | (133) | (133) |  | (133)
Impact of changes in actuarial methods and assumptions, pre-tax | 0 | 133 | 133 |  | 133
Risk adjustment review |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (2,850) | 0 | 0 |  | (2,850)
Impact of changes in actuarial methods and assumptions, pre-tax | 2,850 | 0 | 0 |  | 2,850
Participating policyholders | Portion recognized in net income (loss) attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (115) | (58) | (58) | (29) | (173)
Impact of changes in actuarial methods and assumptions, pre-tax | 115 | 58 | 58 | 29 | 173
Participating policyholders | Portion recognized in OCI attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 21 | 0 | 0 | (45) | 21
Impact of changes in actuarial methods and assumptions, pre-tax | (21) | 0 | 0 | 45 | (21)
Shareholders | Portion recognized in net income (loss) attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | (144) | (27) | (27) | 250 | (171)
Impact of changes in actuarial methods and assumptions, pre-tax | 144 | 27 | 27 | (250) | 171
Shareholders | Portion recognized in OCI attributed to: |  |  |  |  |
Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items] |  |  |  |  |
Increase decrease in impact of changes in actuarial methods and assumption pre tax | 26 | (146) | (146) | (771) | (120)
Impact of changes in actuarial methods and assumptions, pre-tax | $ (26) | $ 146 | $ 146 | $ 771 | $ 120

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_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Increase (Decrease) In Impact Of Changes In Actuarial Methods And Assumption Pre Tax + References No definition available. + Details
Name: | mfc_IncreaseDecreaseInImpactOfChangesInActuarialMethodsAndAssumptionPreTax
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (Decrease) In Impact Of Changes In Pre Fulfilment Cash Flows Due To Actuarial Methods And Assumptions + References No definition available. + Details
Name: | mfc_IncreaseDecreaseInImpactOfChangesInPreFulfilmentCashFlowsDueToActuarialMethodsAndAssumptions
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_NoncontrollingInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_InsuranceContractsByComponentsAxis=ifrs-full_ContractualServiceMarginMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_LapseAndPolicyholderBehaviourUpdatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_ReinsuranceContractAndOtherRiskAdjustmentReviewMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_ExpenseUpdatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_FinancialRelatedUpdatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_MortalityAndMorbidityUpdatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_MethodologyAndOtherUpdatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_PortionRecognizedInNetIncomeLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_PortionRecognizedInOCIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_PortionRecognizedInCsmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_CanadaVariableAnnuityProductReviewMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RiskExposuresAxis=mfc_RiskAdjustmentReviewMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=mfc_ParticipatingPolicyholdersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=mfc_ShareholdersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |