BUSINESS DIGEST
AT&T Outlines Its Plan To Split Into Four Parts AT&T pulled back from an expensive three-year effort to become the first one-stop shop selling long-distance, wireless, cable television and Internet services as a single package with a single bill. Instead, the company announced, it will break itself into four parts. The nation's eighth-largest company, which only two decades ago dominated the telephone business and ranked with General Motors and Mobil among the nation's very largest companies, will soon be four much smaller businesses competing against many formidable, and sometimes larger, rivals. [Page A1.]