Stocks fall at open on outlooks and sales
* Bleak November retail sales from major retailers, including Target Corp , heightened worries about consumer spending.
* Job cut announcements from phone company AT&T and media company Viacom , spotlight severity of recession
* The Dow Jones industrial average was down 74.95 points, or 0.87 percent, at 8,516.74. The Standard & Poor's 500 Index was down 10.17 points, or 1.17 percent, at 860.57. The Nasdaq Composite Index was down 20.32 points, or 1.36 percent, at 1,472.06.
(Reporting by Chuck Mikolajczak; Editing by Kenneth Barry)