| Reclassification adjustments on change in value of foreign currency basis spreads, net of tax | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Reclassification adjustments on change in value of foreign currency basis spreads, net of tax | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The amount of reclassification adjustments related to change in value of foreign currency basis spreads, net of tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Aġġustamenti tar-riklassifikazzjoni minn bidla fil-valur tal-firxiet bażi tal-muniti barranin, netti mit-taxxa | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| L-ammont ta’ aġġustamenti tar-riklassifikazzjoni relatat mal-bidla fil-valur tal-firxiet bażi tal-muniti barranin, nett mit-taxxa. L-aġġustamenti tar-riklassifikazzjoni huma ammonti riklassifikati bħala profitt (telf) fil-perjodu kurrenti li kienu rikonoxxuti f’introjtu komprensiv ieħor fil-perjodi kurrenti jew preċedenti. [Refer: Introjtu komprensiv ieħor] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Aġġustamenti tar-riklassifikazzjoni minn bidla fil-valur tal-firxiet bażi tal-muniti barranin, netti mit-taxxa | mt | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |