magento2 – Free shipping for amount over X USD

if I need to offer free shipping for a total cart amount over USD X, I tried this condition under Marketing –> Cart Price Rules in Magento 2.

Rule

This does not work because it seems that an item should be above USD X amount for it to work.

The conditions dropdownlist shows this:

Choosing rule

As you see, the attribute is per item. How can I do that so that the rule is for the cart total?

Thanks
Jaime