on may 20 , 2015 , aon plc issued $ 600 million of 4.750% ( 4.750 % ) senior notes due may 2045 .the 4.750% ( 4.750 % ) notes due may 2045 are fully and unconditionally guaranteed by aon corporation .we used the proceeds of the issuance for general corporate purposes .on september 30 , 2015 , $ 600 million of 3.50% ( 3.50 % ) senior notes issued by aon corporation matured and were repaid .on november 13 , 2015 , aon plc issued $ 400 million of 2.80% ( 2.80 % ) senior notes due march 2021 .the 2.80% ( 2.80 % ) notes due march 2021 are fully and unconditionally guaranteed by aon corporation .we used the proceeds of the issuance for general corporate purposes .credit facilities as of december 31 , 2015 , we had two committed credit facilities outstanding : our $ 400 million u.s .credit facility expiring in march 2017 ( the "2017 facility" ) and $ 900 million multi-currency u.s .credit facility expiring in february 2020 ( the "2020 facility" ) .the 2020 facility was entered into on february 2 , 2015 and replaced the previous 20ac650 million european credit facility .each of these facilities is intended to support our commercial paper obligations and our general working capital needs .in addition , each of these facilities includes customary representations , warranties and covenants , including financial covenants that require us to maintain specified ratios of adjusted consolidated ebitda to consolidated interest expense and consolidated debt to adjusted consolidated ebitda , tested quarterly .at december 31 , 2015 , we did not have borrowings under either the 2017 facility or the 2020 facility , and we were in compliance with the financial covenants and all other covenants contained therein during the twelve months ended december 31 , 2015 .effective february 2 , 2016 , the 2020 facility terms were extended for 1 year and will expire in february 2021 our total debt-to-ebitda ratio at december 31 , 2015 and 2014 , is calculated as follows: . years ended december 31,          | 2015 | 2014
net income                        | 1422 | 1431
interest expense                  | 273  | 255 
income taxes                      | 267  | 334 
depreciation of fixed assets      | 229  | 242 
amortization of intangible assets | 314  | 352 
total ebitda                      | 2505 | 2614
total debt                        | 5737 | 5582
total debt-to-ebitda ratio        | 2.3  | 2.1  we use ebitda , as defined by our financial covenants , as a non-gaap measure .this supplemental information related to ebitda represents a measure not in accordance with u.s .gaap and should be viewed in addition to , not instead of , our consolidated financial statements and notes thereto .shelf registration statement on september 3 , 2015 , we filed a shelf registration statement with the sec , registering the offer and sale from time to time of an indeterminate amount of , among other securities , debt securities , preference shares , class a ordinary shares and convertible securities .our ability to access the market as a source of liquidity is dependent on investor demand , market conditions and other factors. .
Question: what is the total ebitda in 2015?
Steps: Ask for number 2505
Answer: 2505.0
Question: what is the interest expense in 2015?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
on may 20 , 2015 , aon plc issued $ 600 million of 4.750% ( 4.750 % ) senior notes due may 2045 .the 4.750% ( 4.750 % ) notes due may 2045 are fully and unconditionally guaranteed by aon corporation .we used the proceeds of the issuance for general corporate purposes .on september 30 , 2015 , $ 600 million of 3.50% ( 3.50 % ) senior notes issued by aon corporation matured and were repaid .on november 13 , 2015 , aon plc issued $ 400 million of 2.80% ( 2.80 % ) senior notes due march 2021 .the 2.80% ( 2.80 % ) notes due march 2021 are fully and unconditionally guaranteed by aon corporation .we used the proceeds of the issuance for general corporate purposes .credit facilities as of december 31 , 2015 , we had two committed credit facilities outstanding : our $ 400 million u.s .credit facility expiring in march 2017 ( the "2017 facility" ) and $ 900 million multi-currency u.s .credit facility expiring in february 2020 ( the "2020 facility" ) .the 2020 facility was entered into on february 2 , 2015 and replaced the previous 20ac650 million european credit facility .each of these facilities is intended to support our commercial paper obligations and our general working capital needs .in addition , each of these facilities includes customary representations , warranties and covenants , including financial covenants that require us to maintain specified ratios of adjusted consolidated ebitda to consolidated interest expense and consolidated debt to adjusted consolidated ebitda , tested quarterly .at december 31 , 2015 , we did not have borrowings under either the 2017 facility or the 2020 facility , and we were in compliance with the financial covenants and all other covenants contained therein during the twelve months ended december 31 , 2015 .effective february 2 , 2016 , the 2020 facility terms were extended for 1 year and will expire in february 2021 our total debt-to-ebitda ratio at december 31 , 2015 and 2014 , is calculated as follows: . years ended december 31,          | 2015 | 2014
net income                        | 1422 | 1431
interest expense                  | 273  | 255 
income taxes                      | 267  | 334 
depreciation of fixed assets      | 229  | 242 
amortization of intangible assets | 314  | 352 
total ebitda                      | 2505 | 2614
total debt                        | 5737 | 5582
total debt-to-ebitda ratio        | 2.3  | 2.1  we use ebitda , as defined by our financial covenants , as a non-gaap measure .this supplemental information related to ebitda represents a measure not in accordance with u.s .gaap and should be viewed in addition to , not instead of , our consolidated financial statements and notes thereto .shelf registration statement on september 3 , 2015 , we filed a shelf registration statement with the sec , registering the offer and sale from time to time of an indeterminate amount of , among other securities , debt securities , preference shares , class a ordinary shares and convertible securities .our ability to access the market as a source of liquidity is dependent on investor demand , market conditions and other factors. .
Question: what is the total ebitda in 2015?
Steps: Ask for number 2505
Answer: 2505.0
Question: what is the interest expense in 2015?
