They had received 10 billion 982.1 million. (Source: Wikipedia)
36 nations were recipients of Lend-Lease Loans. As far as I can learn, only Great Britain has finished repaying the loan in full with the 2% interest included, in 2006.
I don't know if anybody noticed that Great Britain gave us half of their vast empire during and after WWII. I was stationed in the Azores for a couple of years. Lajes Field in the Azores had been Great Britain's North Atlantic fuel depot and deep water port before WWII.