The dollar eased on Wednesday ahead of the Federal Reserve's first policy decision under Chair Kevin Warsh, with lingering optimism over an interim U.S.-Iran peace deal underpinning risk appetite and dampening demand for the U.S. currency.
The yen found little respite against a weaker greenback and teetered further into intervention territory, after a well-telegraphed Bank of Japan (BOJ) rate hike delivered few surprises.