Louis Chenevert , who retired as chief executive officer of United Technologies Corp. in a surprise move on Sunday, will leave with a nest egg of about $172 million. That sum includes $109 million of vesting option awards and $32 million of vesting performance-based restricted-stock awards, based on yesterday's closing price, and a pension worth $31 million as of Dec. 31, according to data from the company's proxy filing released earlier this year.