| 貸出金のうち破綻先債権、延滞債権、3ヵ月以上延滞債権及び貸出条件緩和債権の合計額に関する注記 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 貸出金のうち破綻先債権、延滞債権、3ヵ月以上延滞債権及び貸出条件緩和債権の合計額に関する注記、銀行業 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes regarding total balance of loans to bankrupt obligors, non-accrual loans, past due for three months or more, and restructured loans | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Notes regarding total balance of loans to bankrupt obligors, non-accrual loans, past due for three months or more, and restructured loans-BNK [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |