| Investments in subsidiaries, joint ventures and associates | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total investments in subsidiaries, joint ventures and associates | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of investments in subsidiaries, joint ventures and associates in an entity's separate financial statements. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investimenti f’sussidjarji, f’impriżi konġunti u f’kumpaniji assoċjati | mt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| L-ammont ta’ investimenti f’sussidjarji, f’impriżi konġunti u f’kumpaniji assoċjati fir-rapporti finanzjarji separati ta’ entità. [Refer: Kumpaniji assoċjati [member]; Impriżi konġunti [member]; Sussidjarji [member]; Investimenti f’sussidjarji] | mt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |