| Return on plan assets, net defined benefit liability (asset) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Return on plan assets, net defined benefit liability (asset) | en | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
| The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets. The return on plans assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Rendimiento de los activos del plan, pasivo (activo) por beneficios definidos netos | es | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Rendimiento de los activos del plan, pasivo (activo) por beneficios definidos netos | es | http://www.xbrl.org/2009/role/negatedLabel | http://www.xbrl.org/2003/role/link |
Index