| Other comprehensive income, net of tax, available-for-sale financial assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Other comprehensive income, net of tax, available-for-sale financial assets | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of other comprehensive income, net of tax, related to available-for-sale financial assets. [Refer: Financial assets available-for-sale; Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |