XML 183 R148.htm IDEA: XBRL DOCUMENT
v3.20.4

Employee Future Benefits - Summary of Cash Payments (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Pension defined benefit plans [member] |  |
Disclosure of net defined benefit liability (asset) [Line Items] |  |
Cash payment for future benefit plans | $ 155 | $ 155
Retiree welfare plans [member] |  |
Disclosure of net defined benefit liability (asset) [Line Items] |  |
Cash payment for future benefit plans | 11 | 12
Defined benefit plans [Member] | Pension defined benefit plans [member] |  |
Disclosure of net defined benefit liability (asset) [Line Items] |  |
Cash payment for future benefit plans | 71 | 75
Defined benefit plans [Member] | Retiree welfare plans [member] |  |
Disclosure of net defined benefit liability (asset) [Line Items] |  |
Cash payment for future benefit plans | 11 | 12
Defined contribution plans [Member] | Pension defined benefit plans [member] |  |
Disclosure of net defined benefit liability (asset) [Line Items] |  |
Cash payment for future benefit plans | $ 84 | $ 80

X
- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 141 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_141_f&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | mfc_DefinedBenefitPensionPlansAxis=ifrs-full_PensionDefinedBenefitPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mfc_DefinedBenefitPensionPlansAxis=mfc_RetireeWelfarePlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=ifrs-full_DefinedBenefitPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ActuarialAssumptionsAxis=mfc_DefinedContributionPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |