Noninterest Revenue and Noninterest Expense - Asset Management Fees (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Noninterest Income (Expense) [Abstract] | ||||
| Investment management fees | $ 4,708 | $ 4,210 | $ 9,311 | $ 8,269 |
| All other asset management fees | 98 | 92 | 195 | 179 |
| Total asset management fees | $ 4,806 | $ 4,302 | $ 9,506 | $ 8,448 |