XML 221 R186.htm IDEA: XBRL DOCUMENT
v3.20.4

IFRS 7 Disclosures - Summary of Potential Impact on Net Income Attributed to Shareholders and MLI's LICAT Ratio of an Immediate Parallel Change in Interest Rates (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
-50bp [member] |  |
Disclosure of Interest Rate and Spread Risk Sensitivities and Exposure Measures [line items] |  |
Excluding change in market value of AFS fixed income assets held in the Corporate and Other segment |  | $ (100)
From fair value changes in AFS fixed income assets held in the Corporate and Other segment, if realized | $ 2,100 | 1,700
+50bp [member] |  |
Disclosure of Interest Rate and Spread Risk Sensitivities and Exposure Measures [line items] |  |
Excluding change in market value of AFS fixed income assets held in the Corporate and Other segment | (100) | (100)
From fair value changes in AFS fixed income assets held in the Corporate and Other segment, if realized | $ (1,900) | $ (1,600)

X
- Definition Disclosure of interest rate and spread risk sensitivities and exposure measures. + References No definition available. + Details
Name: | mfc_DisclosureOfInterestRateAndSpreadRiskSensitivitiesAndExposureMeasuresLineItems
Namespace Prefix: | mfc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sensitivities discount rate basis points used in financial assumption excluding change in market value of AFS fixed income assets. + References No definition available. + Details
Name: | mfc_SensitivitiesDiscountRateBasisPointsUsedInFinancialAssumptionExcludingChangeInMarketValueOfAFSFixedIncomeAssets
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sensitivities discount rate basis points used in financial assumption from fair value changes in AFS fixed income assets. + References No definition available. + Details
Name: | mfc_SensitivitiesDiscountRateBasisPointsUsedInFinancialAssumptionFromFairValueChangesInAFSFixedIncomeAssets
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=mfc_LessThanFiftyBasisPointsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=mfc_MoreThanFiftyBasisPointsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |