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. .

Question: Analyse this data from a financial earnings document. what is the percentage change in total debt in 2015?
Choices:
548.97223
0.02777
-0.99964
0
155
Correct choice index: 1