note 10 2013 debt our long-term debt consisted of the following ( in millions ) : .
what was the change in millions of total long-term debt net from 2014 to 2015?
revolving credit facilities on october 9 , 2015 , we entered into a new $ 2.5 billion revolving credit facility ( the 5-year facility ) with various banks and concurrently terminated our existing $ 1.5 billion revolving credit facility , which was scheduled to expire in august 2019 . the 5-year facility , which expires on october 9 , 2020 , is available for general corporate purposes . the undrawn portion of the 5-year facility is also available to serve as a backup facility for the issuance of commercial paper . we may request and the banks may grant , at their discretion , an increase in the borrowing capacity under the 5-year facility of up to an additional $ 500 million . there were no borrowings outstanding under the 5-year facility as of and during the year ended december 31 , in contemplation of our acquisition of sikorsky , on october 9 , 2015 , we also entered into a 364-day revolving credit facility ( the 364-day facility , and together with the 5-year facility , the facilities ) with various banks that provided $ 7.0 billion of funding for general corporate purposes , including the acquisition of sikorsky . concurrent with the consummation of the sikorsky acquisition , we borrowed $ 6.0 billion under the 364-day facility . on november 23 , 2015 , we repaid all outstanding borrowings under the 364-day facility with proceeds received from an issuance of new debt ( see below ) and terminated any remaining commitments of the lenders under the 364-day facility . borrowings under the facilities bear interest at rates based , at our option , on a eurodollar rate or a base rate , as defined in the facilities 2019 agreements . each bank 2019s obligation to make loans under the 5-year facility is subject to , among other things , our compliance with various representations , warranties , and covenants , including covenants limiting our ability and certain of our subsidiaries 2019 ability to encumber assets and a covenant not to exceed a maximum leverage ratio , as defined in the five-year facility agreement . as of december 31 , 2015 , we were in compliance with all covenants contained in the 5-year facility agreement , as well as in our debt agreements . long-term debt on november 23 , 2015 , we issued $ 7.0 billion of notes ( the november 2015 notes ) in a registered public offering . we received net proceeds of $ 6.9 billion from the offering , after deducting discounts and debt issuance costs , which are being amortized as interest expense over the life of the debt . the november 2015 notes consist of : 2022 $ 750 million maturing in 2018 with a fixed interest rate of 1.85% ( 1.85 % ) ( the 2018 notes ) ; 2022 $ 1.25 billion maturing in 2020 with a fixed interest rate of 2.50% ( 2.50 % ) ( the 2020 notes ) ; 2022 $ 500 million maturing in 2023 with a fixed interest rate of 3.10% ( 3.10 % ) the 2023 notes ) ; 2022 $ 2.0 billion maturing in 2026 with a fixed interest rate of 3.55% ( 3.55 % ) ( the 2026 notes ) ; 2022 $ 500 million maturing in 2036 with a fixed interest rate of 4.50% ( 4.50 % ) ( the 2036 notes ) ; and 2022 $ 2.0 billion maturing in 2046 with a fixed interest rate of 4.70% ( 4.70 % ) ( the 2046 notes ) . we may , at our option , redeem some or all of the november 2015 notes and unpaid interest at any time by paying the principal amount of notes being redeemed plus any make-whole premium and accrued and unpaid interest to the date of redemption . interest is payable on the 2018 notes and the 2020 notes on may 23 and november 23 of each year , beginning on may 23 , 2016 ; on the 2023 notes and the 2026 notes on january 15 and july 15 of each year , beginning on july 15 , 2016 ; and on the 2036 notes and the 2046 notes on may 15 and november 15 of each year , beginning on may 15 , 2016 . the november 2015 notes rank equally in right of payment with all of our existing unsecured and unsubordinated indebtedness . the proceeds of the november 2015 notes were used to repay $ 6.0 billion of borrowings under our 364-day facility and for general corporate purposes. .