| Assets [member] | ||||||||||
| Intangible assets other than goodwill [member] | Activos para exploración y evaluación [miembro] | Activos financieros, clase [miembro] | Goodwill [member] | Activos no corrientes o grupos de activos para su disposición clasificados como mantenidos para la venta [miembro] | Inventories [member] | Otros activos con su valor deteriorado [miembro] | Total deterioro [miembro] | |||
| Disclosure of impairment loss and reversal of impairment loss [abstract] | ||||||||||
| Disclosure of impairment loss and reversal of impairment loss [line items] | ||||||||||
| Impairment loss recognised in profit or loss | ||||||||||
| Description of line item(s) in statement of comprehensive income in which impairment losses recognised in profit or loss are included | ||||||||||
| Reversal of impairment loss recognised in profit or loss | ||||||||||
| Description of line item(s) in statement of comprehensive income in which impairment losses recognised in profit or loss are reversed | ||||||||||