facility due 2013 relates to leverage ( ratio of debt to operating income before depreciation and amortization ) . as of december 31 , 2008 , we met this financial covenant by a significant margin . our ability to comply with this financial covenant in the future does not depend on further debt reduction or on improved operating results . share repurchase and dividends as of december 31 , 2008 , we had approximately $ 4.1 billion of availability remaining under our share repurchase authorization