The U.S. dollar reversed early losses and rose against the euro and yen on Wednesday after the Federal Reserve's Federal Open Market Committee said it sees diminished downside risks to the outlook for the economy and the labor market.
The FOMC also said it would keep up its current $85 billion a month in bond purchases with no indication it would scale back.
Trading was volatile as had been expected, with the euro initially climbing to a session high against the dollar after the announcement before swinging wildly into losses.
The dollar gained more ground after Federal Reserve Chairman Ben Bernanke said the U.S. central bank's policy setting committee sees a likely reduction in bond purchases this year if economic forecasts come in as expected.
(Read More: Taper Tipoff? Bernanke Hints Easing End Is Nearing)