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Derivative and Hedging Instruments - Additional Information (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | $ 499,021 | $ 440,077
Fair value of reinsurance ceded guaranteed minimum income benefits | 281 | 402
Fair value of reinsurance assumed guaranteed minimum income benefits | 0 | 46
Fair value of credit and interest rate embedded derivatives | 265 | 487
Shareholders and other equity holders’ accumulated other comprehensive income (loss) (“AOCI”): |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Net losses reclassified from AOCI to net income | $ 14 |
Maximum time frame for which variable cash flows are hedged | 28 years |
Continuing Cash Flow Hedges |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Changes in fair value | $ 10 | (149)
CPI Cash Flow hedges |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Changes in fair value | $ (42) | (85)
CPI Cash Flow hedges | Shareholders and other equity holders’ accumulated other comprehensive income (loss) (“AOCI”): |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Maximum time frame for which variable cash flows are hedged | 12 years |
De-Designated Hedges |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Changes in fair value | $ 0 | 0
Variable Annuity |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | $ 90,000 | $ 82,000

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- Definition The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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- 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 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Fair Value Of Reinsurance Assumed Guaranteed Minimum Income Benefits + References No definition available. + Details
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- Definition Fair Value Of Reinsurance Ceded Guaranteed Minimum Income Benefits + References No definition available. + Details
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