S&P 500 companies post record level of pension underfunding

Data shows that S&P 500 defined pensions reached an underfunding status of $451.7 billion in fiscal 2012, up $97 billion over the $354.7 billion posted in 2011. Other post-employment benefits saw underfunded levels increase to $234.9 billion in 2012 from $223.4 billion in 2011.