| 持分法投資利益又は損失(△) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 持分法投資利益又は損失(△) | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 持分法投資利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 持分法投資損失(△) | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| Equity in earnings (losses) of affiliates | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Equity in earnings (losses) of affiliates | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Equity in earnings of affiliates | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Equity in losses of affiliates | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |