human
6. debt the following is a summary of outstanding debt (in millions):.
| As of December 31 | 2015 | 2014 |
| --------- | --------- | --------- |
| 5.00% Senior Notes due September 2020 | 599 | 599 |
| 4.75% Senior Notes due 2045 | 598 | — |
| 3.50% Senior Notes due June 2024 | 597 | 597 |
| 4.60% Senior Notes due June 2044 | 549 | 549 |
| 2.875% Senior Notes due May 2026 (EUR 500M) | 545 | 605 |
| 8.205% Junior Subordinated Notes due January 2027 | 521 | 521 |
| 3.125% Senior Notes due May 2016 | 500 | 500 |
| 2.80% Senior Notes due 2021 | 399 | — |
| 4.00% Senior Notes due November 2023 | 349 | 349 |
| 6.25% Senior Notes due September 2040 | 298 | 298 |
| 4.76% Senior Notes due March 2018 (CAD 375M) | 271 | 322 |
| 4.45% Senior Notes due May 2043 | 249 | 248 |
| 4.25% Senior Notes due December 2042 | 196 | 196 |
| 3.50% Senior Notes due September 2015 | — | 599 |
| Commercial paper | 50 | 168 |
| Other | 16 | 31 |
| Total debt | 5,737 | 5,582 |
| Less short-term and current portion of long-term debt | 562 | 783 |
| Total long-term debt | $5,175 | $4,799 |
revolving credit facilities as of december 31, 2015, aon plc had two committed credit facilities outstanding: its $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. effective february 2, 2016, the 2020 facility terms were extended for 1 year and will expire in february 2021. each of these facilities included customary representations, warranties and covenants, including financial covenants that require aon plc to maintain specified ratios of adjusted consolidated ebitda to consolidated interest expense and consolidated debt to adjusted consolidated ebitda, in each case, tested quarterly. at december 31, 2015, aon plc did not have borrowings under either the 2017 facility or the 2020 facility, and was in compliance with these financial covenants and all other covenants contained therein during the twelve months ended december 31, 2015. on november 13, 2015, aon plc issued $400 million of 2.80% (2.80%) senior notes due march 2021. 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 may 20, 2015, the aon plc issued $600 million of 4.750% (4.750%) senior notes due may 2045. the company used the proceeds of the issuance for general corporate purposes. on august 12, 2014, aon plc issued $350 million of 3.50% (3.50%) senior notes due june 2024. the 3.50% (3.50%) notes due 2024 constitute a further issuance of, and were consolidated to form a single series of debt securities with, the $250 million of 3.50% (3.50%) notes due june 2024 that was issued by aon plc on may 20, 2014 concurrently with aon plc's issuance of $550 million of 4.60% (4.60%) notes due june 2044. aon plc used the proceeds from these issuances for working capital and general corporate purposes. .
Please answer the following question with expressions if necessary.
what is the percent change?
assistant
subtract(5737, 5582), divide(#0, 5582)