| Loss (gain) on step acquisition | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Loss (gain) on step acquisition - OpeCF (IFRS) | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Loss on step acquisition | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Gain on step acquisition | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 段階取得に係る差損益(△は益) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 段階取得に係る差損益(△は益)、営業活動によるキャッシュ・フロー(IFRS) | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 段階取得に係る差損 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 段階取得に係る差益 | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |