| De criteria voor de opname en waardering van de overige effecten (langlopend) in de balans. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Politik bezüglich der sonstigen Wertpapiere (langfristig) | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Policy of non-current other securities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Politique relative aux autres valeurs boursières (non-courantes) | fr | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Grondslag van langlopende overige effecten | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Politik bezüglich der sonstigen Wertpapiere | de | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Policy of other securities | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Politique relative aux autres valeurs boursières | fr | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Grondslag van overige effecten | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |