The dollar slumped to a three-year trough versus its major counterparts on Wednesday, shedding its earlier gains as the euro rose amid coalition negotiations to form a Grand Coalition in Germany.
The dollar index was flat at 90.446 after touching 90.113, its lowest level since December 2014.
The greenback inched up 0.2 percent to 110.675 yen, moving towards a peak of 110.985 scaled on Tuesday.
The euro ticked up 0.05 percent to $1.2266, climbing as high as $1.2323 earlier, its strongest level in three years.
Sterling traded at $1.3836, its highest since June 2016.
Bitcoin dipped 7.2 percent to $10,570.00 on the Bitstamp exchange. It had slumped 16 percent on Tuesday, during which it dropped to a 1-1/2 month trough of $10,162.00 amid worries over possible South Korea's ban trading in bitcoin.