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Total Invested Assets and Related Net Investment Income - Hedge Ineffectiveness (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of detailed information about financial instruments [line items]
Unrealized gains (losses)	$ 111	$ (11)
Losses (gains) reclassified to Net interest income	106	(28)
Foreign exchange risk
Disclosure of detailed information about financial instruments [line items]
Gains (losses) on hedged items for ineffectiveness measurement	(5)	18
Gain (losses) on hedging instruments for ineffectiveness measurement	5	(18)
Hedge ineffectiveness	0	0
Unrealized gains (losses)	69	(17)
Losses (gains) reclassified to Net interest income	(76)	37
Equity price risk
Disclosure of detailed information about financial instruments [line items]
Gains (losses) on hedged items for ineffectiveness measurement	(42)	(6)
Gain (losses) on hedging instruments for ineffectiveness measurement	43	17
Hedge ineffectiveness	1	11
Unrealized gains (losses)	57	7
Losses (gains) reclassified to Net interest income	(41)	(3)
Active hedges | Foreign exchange risk
Disclosure of detailed information about financial instruments [line items]
Accumulated other comprehensive income	14	9
Active hedges | Equity price risk
Disclosure of detailed information about financial instruments [line items]
Accumulated other comprehensive income	$ (10)	$ (10)

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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]

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The gain (loss) on hedge ineffectiveness. Hedge ineffectiveness is the extent to which the changes in the fair value or the cash flows of the hedging instrument are greater or less than those on the hedged item.

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