Many details of the trade deal are still to be worked out, and Wall Street is heading into a week full of potential flash points that could shake markets. The Standard & Poor's 500 index was nearly flat and edged up by less than 0.

U.S. stock indexes drifted through a quiet Monday after the United States agreed to tax cars and other products coming from the European Union at a 15% rate, lower than President Donald Trump had earlier threatened.

Many details are still to be worked out, though, and Wall Street is heading into a week full of potential flashpoints that could shake markets. The S&P 500 fell 0.2% in afternoon trading after setting an all-time high every day last week.