Noninterest Revenue and Noninterest Expense - Asset Management Fees (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Noninterest Income (Expense) [Abstract] | ||||
| Investment management fees | $ 5,547 | $ 4,708 | $ 10,955 | $ 9,311 |
| All other asset management fees | 111 | 98 | 218 | 195 |
| Total asset management fees | $ 5,658 | $ 4,806 | $ 11,173 | $ 9,506 |