XML 164 R139.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Capital Management - Additional Information (Detail) | Dec. 31, 2018 CAD ($)
--- | ---
Bottom of range [Member] |
Disclosure of classes of share capital [Line Items] |
Aggregate liquidation entitlement | $ 200,000,000

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

X
- Definition Preferred stock liquidation preference value. + References No definition available. + Details
Name: | mfc_PreferredStockLiquidationPreferenceValue1
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |