pre_text: ( c ) the cash payments are interest payments on the associated debt obligations discussed above . after formation of the 2015 financing entities , the payments represent interest paid on nonrecourse financial liabilities of special purpose entities . in connection with the acquisition of temple-inland in february 2012 , two special purpose entities became wholly-owned subsidiaries of international paper . the use of the two wholly-owned special purpose entities discussed below preserved the tax deferral that resulted from the 2007 temple-inland timberlands sales . the company recognized an $ 840 million deferred tax liability in connection with the 2007 sales , which will be settled with the maturity of the notes in in october 2007 , temple-inland sold 1.55 million acres of timberland for $ 2.38 billion . the total consideration consisted almost entirely of notes due in 2027 issued by the buyer of the timberland , which temple-inland contributed to two wholly-owned , bankruptcy-remote special purpose entities . the notes are shown in financial assets of special purpose entities in the accompanying consolidated balance sheet and are supported by $ 2.38 billion of irrevocable letters of credit issued by three banks , which are required to maintain minimum credit ratings on their long-term debt . in the third quarter of 2012 , international paper completed its preliminary analysis of the acquisition date fair value of the notes and determined it to be $ 2.09 billion . as of december 31 , 2015 and 2014 , the fair value of the notes was $ 2.10 billion and $ 2.27 billion , respectively . these notes are classified as level 2 within the fair value hierarchy , which is further defined in note 14 . in december 2007 , temple-inland's two wholly-owned special purpose entities borrowed $ 2.14 billion shown in nonrecourse financial liabilities of special purpose entities . the loans are repayable in 2027 and are secured only by the $ 2.38 billion of notes and the irrevocable letters of credit securing the notes and are nonrecourse to us . the loan agreements provide that if a credit rating of any of the banks issuing the letters of credit is downgraded below the specified threshold , the letters of credit issued by that bank must be replaced within 30 days with letters of credit from another qualifying financial institution . in the third quarter of 2012 , international paper completed its preliminary analysis of the acquisition date fair value of the borrowings and determined it to be $ 2.03 billion . as of december 31 , 2015 and 2014 , the fair value of this debt was $ 1.97 billion and $ 2.16 billion , respectively . this debt is classified as level 2 within the fair value hierarchy , which is further defined in note 14 . activity between the company and the 2007 financing entities was as follows: .
post_text: ( a ) the revenue is included in interest expense , net in the accompanying consolidated statement of operations and includes approximately $ 19 million , $ 19 million and $ 19 million for the years ended december 31 , 2015 , 2014 and 2013 , respectively , of accretion income for the amortization of the purchase accounting adjustment on the financial assets of special purpose entities . ( b ) the expense is included in interest expense , net in the accompanying consolidated statement of operations and includes approximately $ 7 million , $ 7 million and $ 7 million for the years ended december 31 , 2015 , 2014 and 2013 , respectively , of accretion expense for the amortization of the purchase accounting adjustment on the nonrecourse financial liabilities of special purpose entities . ( c ) the cash receipts are interest received on the financial assets of special purpose entities . ( d ) the cash payments are interest paid on nonrecourse financial liabilities of special purpose entities . note 13 debt and lines of credit in 2015 , international paper issued $ 700 million of 3.80% ( 3.80 % ) senior unsecured notes with a maturity date in 2026 , $ 600 million of 5.00% ( 5.00 % ) senior unsecured notes with a maturity date in 2035 , and $ 700 million of 5.15% ( 5.15 % ) senior unsecured notes with a maturity date in 2046 . the proceeds from this borrowing were used to repay approximately $ 1.0 billion of notes with interest rates ranging from 4.75% ( 4.75 % ) to 9.38% ( 9.38 % ) and original maturities from 2018 to 2022 , along with $ 211 million of cash premiums associated with the debt repayments . additionally , the proceeds from this borrowing were used to make a $ 750 million voluntary cash contribution to the company's pension plan . pre-tax early debt retirement costs of $ 207 million related to the debt repayments , including the $ 211 million of cash premiums , are included in restructuring and other charges in the accompanying consolidated statement of operations for the twelve months ended december 31 , 2015 . during the second quarter of 2014 , international paper issued $ 800 million of 3.65% ( 3.65 % ) senior unsecured notes with a maturity date in 2024 and $ 800 million of 4.80% ( 4.80 % ) senior unsecured notes with a maturity date in 2044 . the proceeds from this borrowing were used to repay approximately $ 960 million of notes with interest rates ranging from 7.95% ( 7.95 % ) to 9.38% ( 9.38 % ) and original maturities from 2018 to 2019 . pre-tax early debt retirement costs of $ 262 million related to these debt repayments , including $ 258 million of cash premiums , are included in restructuring and other charges in the accompanying consolidated statement of operations for the twelve months ended december 31 , 2014. .
table: In millions 2015 2014 2013
table: Revenue (a) $27 $26 $27
table: Expense (b) 27 25 29
table: Cash receipts (c) 7 7 8
table: Cash payments (d) 18 18 21
question: Analyse this data from a financial earnings document. what was the ratio of the fair value of international paper completed preliminary analysis of the acquisition date fair value of the borrowings in 2015 compared to 2014