In every case I'm familiar with, the receiving bank can convert the cash to another currency. For example, if I'm visiting Mexico and withdraw money from my own American account, then the entry is shown in US Dollars on my account records, but the ATM will dispense Pesos. There are rates for these conversions (https://duckduckgo.com/?q=international+currency+converter) for example, using today's GO currency rate, $100 US would be equal to 1296.75 Mexican Pesos. There are frequently fees for this service.