Investment Securities - Gains and Losses Recognized in Income from Securities (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Available-for-sale debt and other securities: | ||||
| Realized gains | $ 4 | $ 1 | $ 10 | $ 6 |
| Realized losses | (14) | (1) | (21) | (6) |
| Impairment losses | 7 | 0 | 7 | 0 |
| Net losses on available-for-sale debt and other securities | (17) | 0 | (18) | 0 |
| Equity securities: | ||||
| Net realized gains (losses) | 3 | (5) | 4 | (5) |
| Net unrealized gains | 34 | 21 | 22 | 12 |
| Net equity securities gains | 37 | 16 | 26 | 7 |
| Total (losses) gains recognized in income from available-for-sale debt and other securities, trading debt securities and equity securities | 20 | 16 | 8 | 7 |
| Commercial Banking Revenue and Wealth and Asset Management Revenue | ||||
| Equity securities: | ||||
| Total (losses) gains recognized in income from available-for-sale debt and other securities, trading debt securities and equity securities | $ 2 | $ 2 | $ 5 | $ 6 |