Capital Management and Solvency - Additional Information (Detail) $ in Billions |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
| |
| Disclosure of capital management and solvency [line items] | |
| Borrowings, maturity | The maturity date is May 7, 2036 |
| Increase Decrease In Solvency Ratio | 0.15% |
| Revolving Credit Facility [Member] | |
| Disclosure of capital management and solvency [line items] | |
| Borrowings | $ 1,375 |
| Top of range [member] | Revolving Credit Facility [Member] | |
| Disclosure of capital management and solvency [line items] | |
| Borrowings, maturity | 2031 |
| Bottom of range [member] | Revolving Credit Facility [Member] | |
| Disclosure of capital management and solvency [line items] | |
| Borrowings, maturity | 2030 |