Ratings agencies S&P and Moody's downgraded JetBlue Airways after the carrier unveiled plans to raise more than 3billionindebt,majoritybackedbyitsloyaltyprogram,TrueBlue.SharesoftheNewYork−basedcompanyplummeted191.5 billion through a private offering of senior secured notes and an additional 1.25billionviaatermloan,securedbyTrueBlue.Italsoplanstoraise400 million through a convertible notes offering, primarily to refinance existing debt.S&P downg ...