| Impairment losses (reversal of impairment losses) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Impairment losses (reversal of impairment losses) - OpeCF (IFRS) | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Impairment losses | en | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| Reversal of impairment losses | en | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |
| 減損損失(又は戻入れ) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 減損損失(又は戻入れ)、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 |
| 減損損失 | ja | http://www.xbrl.org/2003/role/positiveLabel | http://www.xbrl.org/2003/role/link |
| 減損損失の戻入れ | ja | http://www.xbrl.org/2003/role/negativeLabel | http://www.xbrl.org/2003/role/link |