| Name | LossesOnDevaluationOfStocksAndOtherSecuritiesOEBNK |
|---|---|
| Namespace | http://disclosure.edinet-fsa.go.jp/taxonomy/jppfs/2019-11-01/jppfs_cor |
| Prefix | jppfs_cor |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| 株式等償却 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 株式等償却、経常費用、銀行業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| (うち株式等償却) | ja | http://disclosure.edinet-fsa.go.jp/jppfs/bnk/role/label | http://www.xbrl.org/2003/role/link |
| Loss on devaluation of equity securities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Loss on devaluation of equity securities - OE - BNK | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Loss on devaluation of equity securities | en | http://disclosure.edinet-fsa.go.jp/jppfs/bnk/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2019-05-07 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第3号の2 | http://www.xbrl.org/2003/role/reference |
| Publisher | 内閣府 | http://www.xbrl.org/2003/role/reference |
| Name | 銀行法施行規則 | http://www.xbrl.org/2003/role/reference |
| IssueDate | 2019-05-07 | http://www.xbrl.org/2003/role/reference |
| Appendix | 別紙様式第3号 | http://www.xbrl.org/2003/role/reference |
| IndustryAbbreviation | bnk | http://www.xbrl.org/2003/role/reference |
| Name | Relation Type | Role | |
|---|---|---|---|
jppfs_cor:OtherExpensesOEBNK | parent-child | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_StatementOfIncome | |
jppfs_cor:OtherExpensesOEBNK | summation-item | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_StatementOfIncome | |
jppfs_cor:OtherExpensesOEBNK | domain-member | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_std_StatementOfIncome | |
jppfs_cor:OtherExpensesOEBNK | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_bk1_StatementOfIncome-ListOfAccounts |