| Effect of asset ceiling [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for the effect of asset ceiling in a defined benefit plan. Asset ceiling is the present value of any economic benefits available in the form of refunds from the defined benefit plan or reductions in future contributions to the defined benefit plan. [Refer: Defined benefit plans [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Effett tal-limitu massimu tal-assi [member] | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dan il-membru jirrappreżenta l-effett tal-limitu massimu tal-assi fi pjan ta’ benefiċċju definit. Limitu massimu tal-assi huwa l-valur preżenti ta’ kwalunkwe benefiċċju ekonomiku disponibbli fil-forma ta’ rifużjonijiet mill-pjan ta’ benefiċċju definit jew tnaqqis fil-kontribuzzjonijiet futuri għall-pjan ta’ benefiċċju definit. [Refer: Pjanijiet ta’ benefiċċju definit [member]] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |