| 営業活動及び資産運用活動計 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 営業活動及び資産運用活動計、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 |
| Total of net cash provided by (used in) operating activities and investment transactions | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total of net cash provided by (used in) operating activities and investment transactions-InvCF-INS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |