Settlement and Other Risk Management Narrative (Details) - USD ($) $ in Millions |
Dec. 31, 2022 |
Dec. 31, 2021 |
|---|---|---|
| Settlement and Other Risk Management [Abstract] | ||
| Travelers cheques outstanding, notional value | $ 342 | $ 361 |
| Travelers cheques covered by collateral arrangements | $ 273 | $ 287 |