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Risk Management - Summary of Estimated Expected Credit Losses From All Macoreconomic Scenarios (Detail) $ in Millions | Dec. 31, 2023 CAD ($)
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Disclosure In Tabular Form Of Estimated Expected Credit Losses From All Macoreconomic Scenarios [Line Items] |
Probability-weighted ECLs | $ 929
Base ECLs | 659
Difference – in amount | $ 270
Difference – in percentage | 29.08%

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- Definition Base line expected credit losses. + References No definition available. + Details
Name: | mfc_BaseLineExpectedCreditLosses
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Difference in the expected credit losses between the two methods. + References No definition available. + Details
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Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Disclosure in tabular form of estimated expected credit losses from all macoreconomic scenarios. + References No definition available. + Details
Name: | mfc_DisclosureInTabularFormOfEstimatedExpectedCreditLossesFromAllMacoreconomicScenariosLineItems
Namespace Prefix: | mfc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Estimated expected credit loss based on probability. + References No definition available. + Details
Name: | mfc_EstimatedExpectedCreditLossBasedOnProbability
Namespace Prefix: | mfc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Percentage difference in the expected credit losses between the two methods. + References No definition available. + Details
Name: | mfc_PercentageDifferenceInTheExpectedCreditLossesBetweenTheTwoMethods
Namespace Prefix: | mfc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant