U.S. equities closed higher on Wednesday after the Federal Reserve released a report from the last policy meeting suggesting that the bank may be more cautious towards raising interest rates than originally forecast. The Standard & Poor's 500 Index added 1.09% to 1,872.18, the Dow Jones industrial average climbed 1.11% to 16,437.18 and the Nasdaq Composite index rose to 1.72% to 4,183.90.