| Statement of comprehensive income [abstract] | |||
| Profit (loss) | |||
| Other comprehensive income [abstract] | |||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | |||
| Other comprehensive income, net of tax, exchange differences on translation | |||
| Other comprehensive income, net of tax, actuarial gains (losses) on defined benefit plans | |||
| Other comprehensive income, net of tax, gains (losses) on revaluation | |||
| Total otro resultado integral que no se reclasificará al resultado del periodo, neto de impuestos | |||
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | |||
| Gains (losses) on cash flow hedges, net of tax | |||
| Total otro resultado integral que se reclasificará al resultado del periodo, neto de impuestos | |||
| Other comprehensive income | |||
| Comprehensive income | |||