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Total Invested Assets and Related Net Investment Income - Hedge Ineffectiveness (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Financial Instruments [Abstract]
Gains (losses) on the hedged items attributable to the hedged risk	$ 71	$ (41)
Gains (losses) on the hedging derivatives	(64)	40
Net ineffectiveness on fair value hedges	$ 7	$ (1)

X

- Definition

The gains (losses) on hedged items in fair value hedges, which are attributable to the hedged risk. [Refer: Fair value hedges [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 24
-Subparagraph a
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_ii&doctype=Standard&book=b
-URIDate 2019-03-27

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X

- Definition

The gains (losses) on hedging instruments in fair value hedges. [Refer: Fair value hedges [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2021-01-01
-Name IFRS
-Number 7
-IssueDate 2019-01-01
-Paragraph 24
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_i&doctype=Standard&book=b
-URIDate 2019-03-27

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- Definition

Financial Instruments [Abstract]

+ References

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- Definition

Gains (Losses) On Ineffectiveness Of Fair Value Hedges Recognised In Profit Or Loss

+ References

No definition available.

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