I posted the details in this thread but here are the highlight. I could be wrong so please feel free to correct me.

From the USA perspective (directly from the white house press release):

"[E]xpand U.S. market access in the UK, creating a $5 billion opportunity for new exports for U.S. farmers, ranchers, and producers. This includes more than $700 million in ethanol exports and $250 million in other agricultural products, like beef."

The $5 billion opportunity is just that - an opportunity to sell into UK. Prior to this deal, the UK had a 20% tariff on a 10 000 tons import quota on beef. This is raised to 13 000 tons and a removal of the tariff. And the UK maintained its ban on US chlorine-washed chicken and hormone-treated beef. 

Import tariffs on ethanol are reduced to zero from 19%. This represents a potential increase from the current $535 million to $700 million in ethanol sale into the UK (as per the white house press release).

And that's it from the USA. On the flip side for the UK:

Car tariffs will go from 27.5% to 10% on USA import quota of 100 000 cars (which is just about how many cars UK exports to the USA right now).

Complete elimination of USA tariffs on UK made steel (27.5% to zero). According to the UK press release, the UK steel industry was on the brink of collapse prior to the agreement.

The UK also gets a 13 000 tons quota to export beef into the USA (it had none before that I could find).

Complete removal of tariffs on aircraft parts exported to the USA.

The rest (pharmaceuticals, digital trade) still has to be hammered out.

I'm not saying the USA lost and UK won; trade doesn't have to be a zero sum game. The UK appears to be getting significant concessions hence my comment that Canada would gladly take a similar deal. Again I could be wrong

Edit: typos