| Name | TradingAssetsExcludingDebtAndEquitySecuritiesMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Investments which the entity trades for its own profit, which may include, but is not limited to, mortgage-backed and asset-backed securities, loans, interest rate swaps, credit derivatives, commodity contracts, foreign exchange contracts and equity swaps. Excludes debt and equity securities. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Trading Assets, Excluding Debt and Equity Securities [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |