| 劣後特約付社債及び新株予約権付社債の発行による収入 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 劣後特約付社債及び新株予約権付社債の発行による収入、財務活動によるキャッシュ・フロー、銀行業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Proceeds from issuance of subordinated bonds and bonds with share acquisition rights | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Proceeds from issuance of subordinated bonds and bonds with share acquisition rights - FinCF - BNK | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |