Other Non-Interest Income and Expense (Other Non-Interest Income) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Bank Owned Life Insurance Income | $ 78 | $ 62 | $ 82 |
| Investment Services Fee Income | 138 | 122 | 104 |
| Commercial Credit Fee Income | 105 | 96 | 91 |
| Market value adjustments on employee benefit assets - other | 15 | (45) | 20 |
| Insurance proceeds | 0 | 50 | 0 |
| Unrealized Gain (Loss) on Investments | 0 | 0 | 3 |
| Other Miscellaneous Income | 185 | 199 | 223 |
| Total Noninterest Income | 2,256 | 2,429 | 2,524 |
| Other [Member] | |||
| Total Noninterest Income | $ 521 | $ 484 | $ 523 |