The dollar fell in the longest stretch since June as traders weighed whether the economy is strong enough to warrant a reduction in monetary stimulus and as political budget wrangling threatened a government shutdown.
The yen weakened for a second day against the dollar as the Federal Reserve holds a two-day meeting that may provide more information about when U.S. policy makers will start to reduce bond purchases.
The euro rose from its lowest level against the dollar in more than two years amid speculation global central banks will take more action to sustain faltering economic growth.
"That dominant theme is likely to linger for quite some time, U.S policy divergence."
- Joe Manimbo on Nov 19, 2014