Investments (excluding Consolidated Investment Entities) - Net Gains (Losses) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | $ (40) | $ (41) | $ (85) | $ (75) |
| Derivatives | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | 58 | (26) | 75 | (79) |
| Mortgage loans on real estate | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | (1) | 2 | (1) | (4) |
| Other | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | (9) | 7 | 12 | 10 |
| Fixed maturities, available-for-sale, including securities pledged | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | (14) | (25) | (30) | (24) |
| Fixed maturities, at fair value option | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | (79) | 0 | (143) | 20 |
| Equity securities, at fair value | ||||
| Realized Gain/(Losses) [Line Items] | ||||
| Net gains (losses) | $ 5 | $ 1 | $ 2 | $ 2 |