| 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、保険業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| (うち保険業法第113条繰延資産償却費) | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ins/role/label | 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-INS | en | 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://disclosure.edinet-fsa.go.jp/jppfs/ins/role/label | http://www.xbrl.org/2003/role/link |