XML 121 R86.htm IDEA: XBRL DOCUMENT
v3.20.4

Insurance Contract Liabilities and Reinsurance Assets - Summary of Potential Impact on Net Income Attributed to Shareholders Arising From Changes to Non-economic Assumptions (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2020
Disclosure of sensitivity analysis for actuarial assumptions [abstract] |
Deterioration in incidence rate | 5.00%
Deterioration in claim termination rates | 5.00%

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deterioration in claim termination rates. + References No definition available. + Details
Name: | mfc_DeteriorationInClaimTerminationRates
Namespace Prefix: | mfc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deterioration in incidence rate. + References No definition available. + Details
Name: | mfc_DeteriorationInIncidenceRate
Namespace Prefix: | mfc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration