| Segment profit (loss) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Segment profit (loss) (IFRS) | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Segment profit | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Segment loss | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| セグメント利益(△損失) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| セグメント利益(△損失)(IFRS) | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| セグメント利益 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| セグメント損失 | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |