Dec 20 (Reuters) - Wall Street's main indexes dipped on Wednesday after both houses of Congress approved a long-anticipated tax overhaul.
The Dow Jones Industrial Average fell 28.1 points, or 0.11 percent, to 24,726.65, the S&P 500 lost 2.22 points, or 0.08 percent, to 2,679.25 and the Nasdaq Composite dropped 2.89 points, or 0.04 percent, to 6,960.96. (Reporting By Sinead Carew; Editing by Nick Zieminski)
