| 債券貸借取引支払保証金・受入担保金の純増減額 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 債券貸借取引支払保証金・受入担保金の純増減額、投資活動によるキャッシュ・フロー、保険業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Net increase/decrease in cash collateral provided/received for securities borrowed/lent | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Net increase/decrease in cash collateral provided/received for securities borrowed/lent - InvCF - INS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |