Investment Information - Restricted assets (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
||
|---|---|---|---|---|
| Restricted Assets [Line Items] | ||||
| Restricted assets | $ 14,638 | $ 14,953 | ||
| Collateral or guarantees - affiliated transactions | ||||
| Restricted Assets [Line Items] | ||||
| Restricted assets | 5,584 | 5,323 | ||
| Collateral or guarantees - third party agreements | ||||
| Restricted Assets [Line Items] | ||||
| Restricted assets | 6,437 | 6,784 | ||
| Deposits with US regulatory authorities | ||||
| Restricted Assets [Line Items] | ||||
| Restricted assets | 939 | 948 | ||
| Other | ||||
| Restricted Assets [Line Items] | ||||
| Restricted assets | [1] | $ 1,678 | $ 1,898 | |
| ||||