America has foreign exchange reserves, but the amount is relatively small. It is estimated that there are hundreds of billions of dollars in reserves, mainly foreign exchange reserves in Europe and Japan.

1. Personally, I think the United States pays more attention to gold reserves (gold reserves rank first in the world, and the specific data can be checked by yourself).

Because of the universality of the dollar in the world, the United States doesn't care much about the foreign exchange reserves of other countries (after all, it's cool to print dollars without restriction).