| Name | LoansAndLeasesReceivableValuationPolicy |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Loans and Leases Receivable, Valuation, Policy [Policy Text Block] (Deprecated 2019-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Disclosure of accounting policy for determining the lower of cost or fair value of committed and uncommitted loans, including mortgage and non-mortgage loans. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| DeprecatedDate | 2019-01-31 | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecatedLabel | Element was deprecated and replaced with a more encompassing element. | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecationReplacement | FinanceLoanAndLeaseReceivablesHeldForInvestmentPolicy FinanceLoanAndLeaseReceivablesHeldForSalePolicy | http://fasb.org/srt/role/changeNote/changeNote |
| SourceName | Financial Instruments-Credit Losses | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-09 | http://fasb.org/srt/role/changeNote/changeNote |
| ElementDeprecated | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2016-13 | http://fasb.org/srt/role/changeNote/changeNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DeprecatedItems | parent-child | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:FinanceLoanAndLeaseReceivablesHeldForInvestmentPolicy | dep-aggregateConcept-deprecatedPartConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:FinanceLoanAndLeaseReceivablesHeldForSalePolicy | dep-aggregateConcept-deprecatedPartConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |