Investments - Net Realized Gains and Losses on Available-for-Sale Securities (Details) - Ameriprise Financial - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Net realized gains and losses on Available-for-Sale securities | ||||
| Gross realized investment gains | $ 3 | $ 5 | $ 14 | $ 15 |
| Gross realized investment losses | 0 | (20) | (12) | (25) |
| Credit reversals (losses) | 0 | 0 | 4 | 0 |
| Other impairments | (12) | 0 | (12) | 0 |
| Total | $ (9) | $ (15) | $ (6) | $ (10) |