| 保険業法第113条繰延資産償却費 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 保険業法第113条繰延資産償却費、営業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 |
| Amortization of deferred assets under article 113 of Insurance Business Act | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Amortization of deferred assets under article 113 of Insurance Business Act-OpeCF-INS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |