| 貸倒損失 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 貸倒損失、経常費用、保険業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| (うち貸倒損失) | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ins/role/label | http://www.xbrl.org/2003/role/link |
| Loss from bad debts | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Loss from bad debts-OE-INS | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Loss from bad debts | en | http://disclosure.edinet-fsa.go.jp/jppfs/ins/role/label | http://www.xbrl.org/2003/role/link |