In afternoon trading in New York, the Dow Jones Industrial Average added 0.97 per cent, the Standard & Poor's 500 Index rose 0.75 per cent, while the Nasdaq Composite Index increased 1.36 per cent. The Dow was up about 0.5 per cent prior to the Fed minutes being released.
Shares of Merck and Boeing advanced, last up 2.9 per cent and 2 per cent respectively, propelling the Dow higher.
"People are taking solace in the idea that the Fed may be more accommodative than previously thought, for longer than previously thought," Steve Sosnick, equity-risk manager at Timber Hill/Interactive Brokers Group in Greenwich, Connecticut, told Reuters.
Two-year notes also rose as a result, pushing yields three basis points lower to 0.37 per cent.
"It's dovish for the rates market because it initially sold off because they thought participants were expecting a sooner and faster hiking cycle," Shyam Rajan, an interest-rate strategist at Bank of America, one of 22 primary dealers that trade with the Fed, told Bloomberg News. "The fact that they are playing it down is bullish."
There were more reasons for optimism. Shares of Alcoa rose, last up 3.4 per cent, after the company reported earnings that were better than anticipated, setting a positive tone to the start of the quarterly US results season.
In Europe, the Stoxx 600 Index finished the session with a 0.4 per cent increase from the previous close, as did France's CAC 40. Germany's DAX rose 0.2 per cent, while the UK's FTSE 100 gained 0.7 per cent