Summary: Here's everything you need to know before Wednesday's opening bell: AT&T plans to offer mobile 5G in a dozen cities, including parts of Dallas, Atlanta and Waco, Texas, by the end of 2018. 3M agreed to pay Minnesota $850 million to settle a case alleging the company damaged natural resources and contaminated groundwater. GM proposed investing $2.8 billion into its loss-making South Korean operations over the next 10 years. The minutes from the Federal Reserve's January 31 meeting will be released at 2 p.m ET. U.S. stock futures traded lower as investors continued to eye the bond market. Watch TheStreet's investing interviews on Youtube
