Investments (excluding Consolidated Investment Entities) - Evaluating Securities for Impairments and Debt Modifications (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Intent impairments | $ 0 | $ 5 | $ 19 | $ 5 |