The FOMC statement sent the US dollar broadly lower, roughly 60 pips across the board.
The decline came after the Federal Reserve inserted a line into its statement saying it will "take into account the cumulative tightening of monetary policy, the lags with which monetary policy affects economic activity and inflation."
That's a clear nod to a slowdown in rate hikes, though it's vague on the timing.
The euro rose above yesterday's high after the news.
The moves were mirrored throughout markets. US 2-year yields fell 7.7 bps to 4.46% and US equities turned a decline into a 0.5% gain.