Analise:
Last time I passed thru AMS on either NW or CO, there was a currency exchange booth, I believe, where the baggage belts are. On the back side of this booth, there was one or two ATM machines that worked just fine.
This is clearly the better situation than going thru customs etc. and then, to find an ATM, having to drag bagggage up to the DEPARTURE area where almost all ATMs are located in European airports.