Illinois lawmakers are considering a bipartisan proposal to authorize selling $1 billion of debt to pay for pension buyouts, in a bid to reduce the worst-rated state’s massive unfunded liability for its retirement systems, Bloomberg News reported. A bill introduced in December by state Representative Bob Morgan, a Democrat, would approve borrowing to extend a buyout option for many employees of the state, its universities and school systems. The debt would be on top of a previous authorization from 2018 to issue $1 billion of so-called pension-obligation acceleration debt, most of which has been sold. The pension-buyout program has already cut Illinois’s liability by $1.4 billion, but that still leaves an unfunded obligation of about $130 billion, state data show. A key distinction of the Illinois program is that it reduces liabilities, instead of replacing them with a bond obligation, as traditional municipal pension debt typically does, Kim said. Illinois has sold traditional pension securities, including $10 billion in 2003.