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Capital Instruments - Additional Information (Detail) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Level 2 [Member]
Fair value of capital instruments [line items]
Capital instruments	$ 6,483	$ 5,737

X

- Definition

The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard
-URIDate 2023-03-23

+ Details

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X

- Definition

Fair value of capital instruments [line items]

+ References

No definition available.

+ Details

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Namespace Prefix:	mfc_
Data Type:	xbrli:stringItemType
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X

- Details

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Namespace Prefix:
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