Other Non-Interest Income and Expense (Other Non-Interest Income) (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
||||||||
| Bank Owned Life Insurance Income | $ 62 | $ 82 | $ 95 | ||||||||
| Investment Services Fee Income | 122 | 104 | 84 | ||||||||
| Commercial Credit Fee Income | 96 | 91 | 77 | ||||||||
| Market value adjustments on employee benefit assets - other | (45) | 20 | 12 | ||||||||
| Insurance proceeds | $ 50 | 50 | [1] | 0 | [1] | 0 | [1] | ||||
| Unrealized Gain (Loss) on Investments | [2] | 0 | 3 | 50 | |||||||
| Other Miscellaneous Income | 199 | 223 | 151 | ||||||||
| Total Noninterest Income | 2,429 | 2,524 | 2,393 | ||||||||
| Other [Member] | |||||||||||
| Total Noninterest Income | $ 484 | $ 523 | $ 469 | ||||||||
| |||||||||||