| The amount of income tax relating to amounts recognised in other comprehensive income in relation to hedges of net investments in foreign operations. [Refer: Other comprehensive income; Hedges of net investment in foreign operations [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Total income tax relating to exchange differences on translation of foreign operations and hedges of net investments in foreign operations included in other comprehensive income | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Income tax relating to exchange differences on translation of foreign operations and hedges of net investments in foreign operations included in other comprehensive income | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |