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Financial Instrument Risk Management - Reinsurance Counterparties Exposure by Credit Rating (Details) - CAD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of external credit grades [line items] |  |
Financial assets | $ 173,735 | $ 168,785
Total Reinsurance assets | 3,683 | 3,843
Credit risk | Gross exposure |  |
Disclosure of external credit grades [line items] |  |
Less: Negative reinsurance assets | 1,748 | 1,785
Total Reinsurance assets | 3,683 | 3,843
Credit risk | Gross exposure | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 5,431 | 5,628
Credit risk | Gross exposure | AA | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 2,170 | 2,222
Credit risk | Gross exposure | A | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 928 | 1,156
Credit risk | Gross exposure | BBB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 139 | 213
Credit risk | Gross exposure | BB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 1,861 | 1,779
Credit risk | Gross exposure | CCC | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 197 | 168
Credit risk | Gross exposure | Not rated | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 136 | 90
Credit risk | Collateral | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 2,295 | 2,187
Credit risk | Collateral | AA | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 0 | 8
Credit risk | Collateral | A | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 28 | 73
Credit risk | Collateral | BBB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 117 | 127
Credit risk | Collateral | BB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 1,825 | 1,740
Credit risk | Collateral | CCC | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 194 | 164
Credit risk | Collateral | Not rated | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 131 | 75
Credit risk | Net exposure | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 3,136 | 3,441
Credit risk | Net exposure | AA | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 2,170 | 2,214
Credit risk | Net exposure | A | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 900 | 1,083
Credit risk | Net exposure | BBB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 22 | 86
Credit risk | Net exposure | BB | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 36 | 39
Credit risk | Net exposure | CCC | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | 3 | 4
Credit risk | Net exposure | Not rated | Reinsurance Assets |  |
Disclosure of external credit grades [line items] |  |
Financial assets | $ 5 | $ 15

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35H&doctype=Standard -URIDate 2021-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35I&doctype=Standard -URIDate 2021-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35M&doctype=Standard -URIDate 2021-03-24 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_35N&doctype=Standard -URIDate 2021-03-24 + Details
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