XML 140 R105.htm IDEA: XBRL DOCUMENT
v3.20.4

Risk Management - Summary of Credit Default Swap Protection Sold (Detail) - CAD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount | $ 418,978,000,000 | $ 402,477,000,000
Credit default swaps [Member] |  |
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount | 241,000,000 | 502,000,000
Fair value | $ 3,000,000 | $ 6,000,000
Weighted average maturity (in years) | 1 year | 1 year
Credit default swaps [Member] | AA [Member] |  |
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount |  | $ 24,000,000
Weighted average maturity (in years) |  | 1 year
Credit default swaps [Member] | A [Member] |  |
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount | $ 136,000,000 | $ 371,000,000
Fair value | $ 2,000,000 | $ 5,000,000
Weighted average maturity (in years) | 1 year | 1 year
Credit default swaps [Member] | BBB [Member] |  |
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount | $ 105,000,000 | $ 107,000,000
Fair value | $ 1,000,000 | $ 1,000,000
Weighted average maturity (in years) | 2 years | 2 years
Credit default swaps [Member] | Single name CDSs [Member] |  |
Disclosure of information about credit exposures designated as measured at fair value through profit or loss [Line Items] |  |
Notional amount | $ 241,000,000 | $ 502,000,000
Fair value | $ 3,000,000 | $ 6,000,000
Weighted average maturity (in years) | 1 year | 1 year

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

X
- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_25&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_FinancialAssetsAtFairValue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average maturity term. + References No definition available. + Details
Name: | mfc_WeightedAverageMaturityTerm
Namespace Prefix: | mfc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=mfc_CreditDefaultSwapsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ExternalCreditGradesAxis=mfc_AACreditGradesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ExternalCreditGradesAxis=mfc_ACreditGradesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ExternalCreditGradesAxis=mfc_BBBCreditGradesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ExternalCreditGradesAxis=mfc_CDSCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |