Mortgage Loans on Real Estate - Valuation Allowance Rollforward (Details) - Mortgage loans on real estate, net of allowance - USD ($) $ in Millions |
3 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
|
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | $ (100) | |||
| Ending balance | $ (112) | |||
| Commercial mortgage loans | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | (79) | (87) | $ (142) | $ (144) |
| Provision | (15) | (4) | 15 | (1) |
| Writeoffs charged against the allowance | 2 | 12 | 0 | 3 |
| Recoveries of amounts previously written off | 0 | 4 | ||
| Ending balance | (92) | (79) | (123) | (142) |
| Residential mortgage loans | ||||
| Allowance for Loan and Lease Losses [Roll Forward] | ||||
| Beginning balance | (18) | (13) | (10) | (9) |
| Provision | (3) | (6) | (3) | (1) |
| Writeoffs charged against the allowance | 1 | 1 | 0 | 0 |
| Recoveries of amounts previously written off | 0 | 0 | ||
| Ending balance | $ (20) | $ (18) | $ (13) | $ (10) |