Holy crap, that is a bad thing. Here is the link to the full report and here is the short version of the text -
Illinois: Largest Pension Debt in the Nation at $42.2 Billion
After decades of neglect, Illinois now has the greatest total unfunded pension liability in the nation. The debt affects everything from the revenue available to fund public services like education and healthcare, to the state's bond rating and ability to pursue capital improvement projects.
Illinois state government's funding of, or more accurately stated, failure to fund, its required pension contributions has generated significant interest lately, even receiving the attention of some candidates for public office and the media. This new found attention is welcome, because after decades of neglect, Illinois now has the greatest total unfunded pension liability in the nation. As Figure 1[see website below] below illustrates, Illinois' unfunded pension obligation dwarfs the next worst state, Ohio, by more than $11 billion, is significantly greater than the state of California, which has three times the population, more than three times the state budget and 310,000 more public employees than Illinois. Illinois unfunded pension liability is almost six times greater than the national average.