Illinois uses a discount rate of about 8% for its pension liabilities. This makes them look smaller than they really are. The 8% represents expected return on assets. Illinois's five pension pllans assume returns ranging from 7% to 8.5%, yet their average 10 year returns ranged from 2.4% to 3.6%. The Netherlands uses a discount rate equal to government borrowing rates, which would be 4% for the U.S. And Dutch plans have to be fully funded or take steps to make up the difference. Illinois will have its plans 90% funded by fiscal 2045. Canada uses a government return adjusted for inflation and an additional premium, which is about 6%. The Ontario Teacher's Pension Plan for instance uses a discount rate of 5.4% and is about 85% funded. The Ontario plan's CEO, Jim Leech, says his fund would be 200% funded if it used the Illinois approach. Which raises the question is the Illinois approach realistic and isn't the best approach to be realistic about the finances.