In each of 2014 and 2012, we extinguished $1.6 billion of existing debt under our secured financing arrangements prior to scheduled maturity. In connection with the extinguishment, we recorded losses of $268 million and $118 million , respectively, for the difference between the principal paid and the carrying value of the debt, which included unamortized discounts or premiums and unamortized issuance costs. The unamortized debt discounts resulted from fair value adjustments recorded in the 2008 purchase accounting of Northwest Airlines. The losses also included premiums paid to retire the debt.