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Financial assets and liabilities - Equity Price Exposures (Details) - CAD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Net gains (losses) on change in fair value of derivatives | $ (81) | $ 100 | $ (6) | $ 160 |
Equity price risk |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Net gains (losses) on change in fair value of derivatives | $ 81 |  | $ 6 |  |
Percentage of possible change in risk variable | 5.00% |  | 5.00% |  |
Reasonably possible change in risk variable impact on net earnings | $ 35 |  | $ 35 |  |
Forward contract | Settlement of share-based compensation plans | Equity price risk |  |  |  |  |
Disclosure of detailed information about hedging instruments [line items] |  |  |  |  |
Financial instruments designated as hedging instruments, at fair value | $ 16 |  | $ 16 |  | $ 130

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- Definition The fair value of financial instruments designated as hedging instruments. Hedging instruments are designated derivatives or (for a hedge of the risk of changes in foreign currency exchange rates only) designated non-derivative financial assets or non-derivative financial liabilities whose fair value or cash flows are expected to offset changes in the fair value or cash flows of a designated hedged item. [Refer: At fair value [member]; Derivatives [member]; Derivative financial assets; Derivative financial liabilities; Financial instruments, class [member]; Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 22 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_22_b&doctype=Standard&book=b -URIDate 2021-03-24 + Details
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