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AT&T; Corp. completed the spinoff of its cable-television unit to Comcast Corp. for about $60 billion in stock and debt. The combination creates the world’s largest cable company, with about 22 million subscribers in 41 states.

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Waste Management Inc. said all 500 of its Los Angeles-area drivers reported to work as scheduled, and that contract negotiations will resume Thursday after a nearly two-week hiatus.

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Computer Associates International Inc. Chairman Charles Wang, who founded what became the world’s fifth-largest software maker, retired and was succeeded by Chief Executive Sanjay Kumar.

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* Equity Office Properties Trust named Chief Operating Officer Richard Kincaid to replace Sam Zell on April 1 as chief executive of the nation’s largest owner of office buildings. Zell will remain chairman.