The only information I've read or heard about his "deal" with the European Union comes from Trump's mouth and is a 15% tariff on steel and aluminum.
The devil is always in the details and those details have yet to be enumerated. So, we have Trump taking a victory lap on a so-called deal that has yet to be reduced to a writing and signed off by all parties involved.
So, as far as I can see, this is just another of Trump's Wizard of Oz moments; in practical terms nothing more than another nothingburger grilled up by Don the Con.