Investments - Mortgage Loans, Net (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Mortgage Loans | $ 103,581 | $ 95,544 |
| Commercial mortgage loans | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Investment owned, principal amount | 50,174 | 40,656 |
| Mark to fair value | (1,883) | (1,585) |
| Mortgage loans, net of allowances | 48,291 | 39,071 |
| Commercial mortgage loans | Commercial mortgage loans | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Investment owned, principal amount | 48,372 | 38,869 |
| Commercial mortgage loans | Commercial mortgage loans under development | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Investment owned, principal amount | 1,802 | 1,787 |
| Residential mortgage loans | ||
| Loans and Leases Receivable Disclosure [Line Items] | ||
| Investment owned, principal amount | 55,030 | 55,613 |
| Mark to fair value | 260 | 860 |
| Mortgage loans, net of allowances | $ 55,290 | $ 56,473 |