Milwaukee Public Schools (MPS) faced a dramatic and painful increase in employee retirement costs, driven primarily by a sharp rise in the bill for retiree health insurance, a program covered by collective-bargaining agreements between the district and its unions. In March 2011, Governor Scott Walker signed into law the Wisconsin Budget Repair Bill, also known as Act 10. By limiting collective bargaining to wages only, this measure gave MPS the authority to modify its retiree health program, and the Badger State's largest school system has since acted upon that authority. This report analyzes and projects the future retirement obligations in Milwaukee and highlights how retirement reform can help to solve the pension-funding problem. [For the summary report, see ED598726.]