| Market risk [member] | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| This member stands for the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market prices. Market risk comprises three types of risk: currency risk, interest rate risk and other price risk. [Refer: Currency risk [member]; Interest rate risk [member]; Other price risk [member]; Financial instruments, class [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Marktrisico [member] | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Dit lid geeft het risico aan dat de reële waarde of toekomstige kasstromen van een financieel instrument zullen schommelen als gevolg van veranderingen in marktprijzen. Marktrisico omvat drie soorten risico: valutarisico, renterisico en ander prijsrisico. [Zie: valutarisico [member]; renterisico [member]; ander prijsrisico [member]; financiële instrumenten, klasse [member]] | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |