Commitments, Contingent Liabilities, and Guarantees - Commitments to Extend Credit or Funding (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Guarantor Obligations [Line Items] | ||
| Total loan commitments | $ 77,112 | $ 75,009 |
| Commercial letters of credit | 49 | 63 |
| Purchase card commitments | 993 | 1,048 |
| Principal investing commitments | 1 | 1 |
| Tax credit investment commitments | 1,132 | 1,362 |
| Total loan and other commitments | 79,287 | 77,483 |
| Commercial and other | ||
| Guarantor Obligations [Line Items] | ||
| Total loan commitments | 59,731 | 57,010 |
| Commercial real estate and construction | ||
| Guarantor Obligations [Line Items] | ||
| Total loan commitments | 3,561 | 2,855 |
| Home equity | ||
| Guarantor Obligations [Line Items] | ||
| Total loan commitments | 7,793 | 8,360 |
| Credit cards | ||
| Guarantor Obligations [Line Items] | ||
| Total loan commitments | $ 6,027 | $ 6,784 |