Stocks on both sides of the Atlantic slid amid disappointing results from companies including 3M and Caterpillar.
Also hurting sentiment was a report showing US consumer confidence weakened more than expected. And oil fell.
"We've had some mixed earnings today and the market right now is digesting earnings and positioning itself ahead of the Fed[eral Reserve] meeting next week," Jeff Zipper, managing director for investments at Private Client Reserve at US Bank in Palm Beach, Florida, told Reuters.
In 2.10pm trading in New York, the Dow Jones Industrial Average fell 0.2 per cent, while the Nasdaq Composite Index slid 0.4 per cent. In 1.54pm trading, the Standard & Poor's 500 Index declined 0.2 per cent.
The Dow moved lower as declines in shares of 3M and those of Home Depot, recently down 2.9 per cent and 2.8 per cent respectively, outweighed gains in shares of Procter & Gamble and those of United Technologies, recently trading 4.1 per cent and 2.4 per cent higher respectively.