The dollar index, which measures the dollar against six major peers, fell 0.04 percent to 111.4800.
In late New York trading, the euro was up at US$0.9888 from US$0.9887 in the previous session, and the British pound was up at US$1.1479 from US$1.1470 in the previous session.
The US dollar bought 148.18 Japanese yen, down from 148.62 Japanese yen from the previous session. The US dollar fell to 0.9997 Swiss francs from 1.0016 Swiss francs and it fell to 1.3616 Canadian dollars from 1.3627 Canadian dollars. The US dollar fell to SEK 11.0160 from SEK 11.0451.
The above market reactions came as the Fed’s interest rate decision will take center stage.
The Fed will make its interest rate announcement on Wednesday afternoon at the conclusion of a two-day policy meeting. Fed Chairman Jerome Powell will hold his usual press conference afterwards.