$10.1 billion combo from potential airline merger

A potential merger of United Airlines Inc., Chicago, and US Airways Group Inc., Tempe, Ariz., would combine companies with defined contribution assets estimated at $10.1 billion. Neither company has defined benefit plans. According to Pensions & Investments estimates, United had $7.3 billion in defined contribution assets as of Sept. 30, and US Airways had $2.77 billion in defined contribution assets. Officials at US Airways and United could not be reached for further details on their pension plans.