| Accumulated amortization and impairment losses | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Accumulated amortization and impairment losses, Components of goodwill and intangible assets (IFRS) [abstract] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 償却累計額及び減損損失累計額 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 償却累計額及び減損損失累計額、のれん及び無形資産の内訳(IFRS) [タイトル項目] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |