Investors are also waiting for a speech by U.S. Federal Reserve Chairman Jerome Powell scheduled for Wednesday. The central bank's Federal Open Market Committee started its two-day policy meeting on Tuesday.
The market has been betting on the possible loosening of the Fed's monetary tightening later this year, which is normally unfavorable to the greenback in global foreign exchange markets.
In late New York trading, the euro was unchanged at close to 1.1427 U.S. dollars from 1.1427 dollars in the previous session, and the British pound decreased to 1.3100 dollars from 1.3157 dollars in the previous session. The Australian dollar decreased to 0.7148 dollar from 0.7165 dollar.
The U.S. dollar bought 109.27 Japanese yen, lower than 109.35 Japanese yen of the previous session. The U.S. dollar increased to 0.9950 Swiss franc from 0.9916 Swiss franc, and it rose to 1.3283 Canadian dollars from 1.3256 Canadian dollars.