{"pre_text": ["exchanged installment notes totaling approximately $ 4.8 billion and approximately $ 400 million of inter- national paper promissory notes for interests in enti- ties formed to monetize the notes .", "international paper determined that it was not the primary benefi- ciary of these entities , and therefore should not consolidate its investments in these entities .", "during 2006 , these entities acquired an additional $ 4.8 bil- lion of international paper debt securities for cash , resulting in a total of approximately $ 5.2 billion of international paper debt obligations held by these entities at december 31 , 2006 .", "since international paper has , and intends to affect , a legal right to offset its obligations under these debt instruments with its investments in the entities , international paper has offset $ 5.0 billion of interest in the entities against $ 5.0 billion of international paper debt obligations held by the entities as of december 31 , 2007 .", "international paper also holds variable interests in two financing entities that were used to monetize long-term notes received from sales of forestlands in 2002 and 2001 .", "see note 8 of the notes to consolidated financial statements in item 8 .", "financial statements and supplementary data for a further discussion of these transactions .", "capital resources outlook for 2008 international paper expects to be able to meet pro- jected capital expenditures , service existing debt and meet working capital and dividend requirements during 2008 through current cash balances and cash from operations , supplemented as required by its various existing credit facilities .", "international paper has approximately $ 2.5 billion of committed bank credit agreements , which management believes is adequate to cover expected operating cash flow variability during our industry 2019s economic cycles .", "the agreements generally provide for interest rates at a floating rate index plus a pre-determined margin dependent upon international paper 2019s credit rating .", "the agreements include a $ 1.5 billion fully commit- ted revolving bank credit agreement that expires in march 2011 and has a facility fee of 0.10% ( 0.10 % ) payable quarterly .", "these agreements also include up to $ 1.0 billion of available commercial paper-based financ- ings under a receivables securitization program that expires in october 2009 with a facility fee of 0.10% ( 0.10 % ) .", "at december 31 , 2007 , there were no borrowings under either the bank credit agreements or receiv- ables securitization program .", "the company will continue to rely upon debt and capital markets for the majority of any necessary long-term funding not provided by operating cash flows .", "funding decisions will be guided by our capi- tal structure planning objectives .", "the primary goals of the company 2019s capital structure planning are to maximize financial flexibility and preserve liquidity while reducing interest expense .", "the majority of international paper 2019s debt is accessed through global public capital markets where we have a wide base of investors .", "the company was in compliance with all its debt covenants at december 31 , 2007 .", "principal financial covenants include maintenance of a minimum net worth , defined as the sum of common stock , paid-in capital and retained earnings , less treasury stock , plus any goodwill impairment charges , of $ 9 billion ; and a maximum total debt to capital ratio , defined as total debt divided by total debt plus net worth , of 60% ( 60 % ) .", "maintaining an investment grade credit rating is an important element of international paper 2019s financing strategy .", "at december 31 , 2007 , the company held long-term credit ratings of bbb ( stable outlook ) and baa3 ( stable outlook ) by standard & poor 2019s ( s&p ) and moody 2019s investor services ( moody 2019s ) , respectively .", "the company currently has short-term credit ratings by s&p and moody 2019s of a-2 and p-3 , respectively .", "contractual obligations for future payments under existing debt and lease commitments and purchase obligations at december 31 , 2007 , were as follows : in millions 2008 2009 2010 2011 2012 thereafter maturities of long-term debt ( a ) $ 267 $ 1300 $ 1069 $ 396 $ 532 $ 3056 debt obligations with right of offset ( b ) 2013 2013 2013 2013 2013 5000 ."], "post_text": ["( a ) total debt includes scheduled principal payments only .", "( b ) represents debt obligations borrowed from non-consolidated variable interest entities for which international paper has , and intends to affect , a legal right to offset these obligations with investments held in the entities .", "accordingly , in its con- solidated balance sheet at december 31 , 2007 , international paper has offset approximately $ 5.0 billion of interests in the entities against this $ 5.0 billion of debt obligations held by the entities ( see note 8 in the accompanying consolidated financial statements ) .", "( c ) includes $ 2.1 billion relating to fiber supply agreements entered into at the time of the transformation plan forestland sales .", "( d ) not included in the above table are unrecognized tax benefits of approximately $ 280 million. ."], "table": [["in millions", "2008", "2009", "2010", "2011", "2012", "thereafter"], ["maturities of long-term debt ( a )", "$ 267", "$ 1300", "$ 1069", "$ 396", "$ 532", "$ 3056"], ["debt obligations with right of offset ( b )", "2013", "2013", "2013", "2013", "2013", "5000"], ["lease obligations", "136", "116", "101", "84", "67", "92"], ["purchase obligations ( c )", "1953", "294", "261", "235", "212", "1480"], ["total ( d )", "$ 2356", "$ 1710", "$ 1431", "$ 715", "$ 811", "$ 9628"]], "table_ori": [["<i>In millions</i>", "2008", "2009", "2010", "2011", "2012", "Thereafter"], ["Maturities of long-term debt (a)", "$267", "$1,300", "$1,069", "$396", "$532", "$3,056"], ["Debt obligations with right of offset (b)", "–", "–", "–", "–", "–", "5,000"], ["Lease obligations", "136", "116", "101", "84", "67", "92"], ["Purchase obligations (c)", "1,953", "294", "261", "235", "212", "1,480"], ["Total (d)", "$2,356", "$1,710", "$1,431", "$715", "$811", "$9,628"]]}

Question: during 2006 what was the initial debt balance prior to the issuance of additional international paper debt securities for cash
Evidence:
text_2: during 2006 , these entities acquired an additional $ 4.8 bil- lion of international paper debt securities for cash , resulting in a total of approximately $ 5.2 billion of international paper debt obligations held by these entities at december 31 , 2006 .
Program: subtract(5.2, 4.8)
Answer:
str_answer: 0.4
exe_answer: 0.4