BRIEF-Moody's upgrades MWV's senior unsecured debt to Baa3; outlook stable

Wed Aug 22, 2012 7:14pm EDT

Aug 23 (Reuters) - Moody's Investors Service upgraded MeadWestvaco Corporation (MWV)'s senior unsecured debt ratings to Baa3 from Ba1. Moody's withdrew the company's Ba1 corporate family and probability of default ratings consistent with Moody's ratings practice for investment grade issuers.