The greenback soared to a three-year high of 102.99 against a basket of currencies in March, before ending the year at 89.96, down 6.77pc on the year and 12.65pc from its March high.
Bullion had jumped more than 1pc earlier in the session, helped by reports that U.S. congressional leaders reached agreement on a $900 billion package.
Dutch health technology firm Philips rose 1.3pc after it agreed to buy U.S. cardiac diagnostics and monitoring firm BioTelemetry in a deal worth $2.8 billion.
The EU's chief executive said on Wednesday she could not say if there would be a trade deal with Britain but there had been progress and the next few days would be critical.
The dollar index, which measures the greenback against a basket of currencies, was last at 90.477, after sinking as low as 90.419 on Monday, a level not seen since April 2018.