| Other comprehensive income, before tax, hedges of net investments in foreign operations | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other comprehensive income, before tax, hedges of net investments in foreign operations | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of other comprehensive income, before tax, related to hedges of net investments in foreign operations. [Refer: Other comprehensive income, before tax] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |