| Group [member] | Company [member] | ||
| Statement of income and expenditure [abstract] | |||
| Continuing operations [abstract] | |||
| Income | |||
| Other income | |||
| Depreciation, impairment and amortisation | |||
| Employee benefit expenses | |||
| Other expenses | |||
| Finance income | |||
| Finance cost | |||
| Surplus (deficit) of income over expenditure before taxation | |||
| Tax expense | |||
| Surplus (deficit) of income over expenditure from continuing operations | |||
| Discontinued operations [abstract] | |||
| Surplus (deficit) from discontinued operations, net of tax | |||
| Total surplus (deficit) | |||
| Surplus (deficit), attributable to [abstract] | |||
| Surplus (deficit), attributable to members of company | |||
| Surplus (deficit), attributable to non-controlling interests | |||
| Total surplus (deficit) | |||
| Other comprehensive income (expense), net of tax [Abstract] | |||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | |||
| Gains (losses) on exchange differences on translation, net of tax | |||
| Other comprehensive income, net of tax, gains (losses) on revaluation | |||
| Remeasurement of defined benefit liability | |||
| Other comprehensive income, before tax, gains (losses) on other items | |||
| Total other comprehensive income that will not be reclassified to profit or loss, net of tax | |||
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | |||
| Gains (losses) on exchange differences on translation, net of tax | |||
| Gains (losses) on cash flow hedges, net of tax | |||
| Gains (losses) on hedges of net investments in foreign operations, net of tax | |||
| Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax | |||
| Other comprehensive income, net of tax, gains (losses) on other items | |||
| Total other comprehensive income that will be reclassified to profit or loss, net of tax | |||
| Total other comprehensive surplus (deficit) | |||
| Total comprehensive surplus (deficit) | |||
| Comprehensive surplus (deficit) attributable to [abstract] | |||
| Comprehensive surplus (deficit), attributable to owners | |||
| Comprehensive surplus (deficit), attributable to non-controlling interests | |||
| Total comprehensive surplus (deficit) | |||