Investment Contract Liabilities - Additional Information (Details) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of performance obligations [line items] | ||
| Reinsurance contract held liabilities | $ 3,273 | $ 2,669 |
| Total fair value | ||
| Disclosure of performance obligations [line items] | ||
| Reinsurance contract held liabilities | 934 | 978 |
| Carrying amount | ||
| Disclosure of performance obligations [line items] | ||
| Reinsurance contract held liabilities | 889 | 1,052 |
| FVOCI | ||
| Disclosure of performance obligations [line items] | ||
| Interest income from contracts | 28 | 29 |
| Changes in contract fair value | 12 | 24 |
| FVOCI | Total fair value | ||
| Disclosure of performance obligations [line items] | ||
| Fair value of reinsurance contract assets backing investment contract liabilities | 620 | 669 |
| Amortized cost | ||
| Disclosure of performance obligations [line items] | ||
| Interest income from contracts | $ 40 | $ 41 |