Answer:
The US actually ranks at a lowest position when it comes to paid leave if we compare it against other developed nations.
Even if we include poor countries into our ranking, the US ranks at the very bottom. E.g. only a few countries in the world that are part of the UN do not have paid parental leave that includes all their citizens: the US, Surinam, and some island countries of the coast of Australia or southern Asia. Considering that the US is the only country of considerable size in the list, the other countries have populations of only a few thousands of people, it is not a good spot.
Although it is true that some states provide paid parental leave in the US like California, Massachusetts, New York, and others.
The US is actually the only developed country that doesn't provide universal parental leave for both mothers and fathers.
When it comes to unpaid parental leave, there is not much to compare with. Since all the other developed countries provide paid parental leave, no other country provides unpaid leave.