Derivative Instruments and Hedging Activities, Derivative Valuation Adjustments (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| CVA | $ (303) | $ (286) |
| DVA | 248 | 200 |
| FVA, net | (94) | (93) |
| Total derivative valuation adjustments | $ (149) | $ (179) |