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Risk Management - Potential Immediate Impact on Net Income Attributed to Shareholders Arising from Changes to Public Equity Returns (Details) - CAD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of credit risk exposure [line items] |  |
Percentage of equity hedges in the dynamic program offset against hedged variable annuity liability | 95.00% | 95.00%
-30% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | $ (2,050) | $ (2,370)
General fund equity investments | (1,240) | (1,170)
Total underlying sensitivity before hedging | (3,290) | (3,540)
Impact of macro and dynamic hedge assets | 720 | 880
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | (2,570) | (2,660)
Impact of reinsurance | 1,320 | 1,470
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | (1,250) | (1,190)
-20% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | (1,240) | (1,460)
General fund equity investments | (820) | (770)
Total underlying sensitivity before hedging | (2,060) | (2,230)
Impact of macro and dynamic hedge assets | 430 | 530
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | (1,630) | (1,700)
Impact of reinsurance | 810 | 900
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | (820) | (800)
-10% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | (560) | (670)
General fund equity investments | (400) | (390)
Total underlying sensitivity before hedging | (960) | (1,060)
Impact of macro and dynamic hedge assets | 190 | 240
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | (770) | (820)
Impact of reinsurance | 370 | 420
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | (400) | (400)
+10% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | 470 | 550
General fund equity investments | 390 | 380
Total underlying sensitivity before hedging | 860 | 930
Impact of macro and dynamic hedge assets | (150) | (190)
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | 710 | 740
Impact of reinsurance | (320) | (350)
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | 390 | 390
+20% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | 860 | 1,010
General fund equity investments | 780 | 760
Total underlying sensitivity before hedging | 1,640 | 1,770
Impact of macro and dynamic hedge assets | (260) | (340)
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | 1,380 | 1,430
Impact of reinsurance | (590) | (650)
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | 790 | 780
+30% |  |
Disclosure of credit risk exposure [line items] |  |
Variable annuity and segregated fund guarantees | 1,190 | 1,390
General fund equity investments | 1,180 | 1,140
Total underlying sensitivity before hedging | 2,370 | 2,530
Impact of macro and dynamic hedge assets | (360) | (460)
Net potential impact on net income attributed to shareholders after impact of hedging and before impact of reinsurance | 2,010 | 2,070
Impact of reinsurance | (830) | (910)
Net potential impact on net income attributed to shareholders after impact of hedging and reinsurance | $ 1,180 | $ 1,160

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