In January, Alex Gorsky will take over as the new chairman of Johnson & Johnson. That’s because William C. Weldon will be stepping down at the end of the year, according to the firm. Gorsky took Weldon’s place as chief executive in April, so the move was anticipated. What many observers did not expect to see was the gaudy size of Weldon’s retirement package. Weldon will be eligible for $95.1 million in deferred and long-term compensation, in addition to $48 million in pension payments, the company announced.