6 . debt the following is a summary of outstanding debt ( in millions ) : .

2015: 5.00% ( 5.00 % ) senior notes due september 2020: 599
4.75% ( 4.75 % ) senior notes due 2045: 598
3.50% ( 3.50 % ) senior notes due june 2024: 597
4.60% ( 4.60 % ) senior notes due june 2044: 549
2.875% ( 2.875 % ) senior notes due may 2026 ( eur 500m ): 545
8.205% ( 8.205 % ) junior subordinated notes due january 2027: 521
3.125% ( 3.125 % ) senior notes due may 2016: 500
2.80% ( 2.80 % ) senior notes due 2021: 399
4.00% ( 4.00 % ) senior notes due november 2023: 349
6.25% ( 6.25 % ) senior notes due september 2040: 298
4.76% ( 4.76 % ) senior notes due march 2018 ( cad 375m ): 271
4.45% ( 4.45 % ) senior notes due may 2043: 249
4.25% ( 4.25 % ) senior notes due december 2042: 196
3.50% ( 3.50 % ) senior notes due september 2015: 2014
commercial paper: 50
other: 16
total debt: 5737
less short-term and current portion of long-term debt: 562
total long-term debt: 5175
2014: 5.00% ( 5.00 % ) senior notes due september 2020: 599
4.75% ( 4.75 % ) senior notes due 2045: 2014
3.50% ( 3.50 % ) senior notes due june 2024: 597
4.60% ( 4.60 % ) senior notes due june 2044: 549
2.875% ( 2.875 % ) senior notes due may 2026 ( eur 500m ): 605
8.205% ( 8.205 % ) junior subordinated notes due january 2027: 521
3.125% ( 3.125 % ) senior notes due may 2016: 500
2.80% ( 2.80 % ) senior notes due 2021: 2014
4.00% ( 4.00 % ) senior notes due november 2023: 349
6.25% ( 6.25 % ) senior notes due september 2040: 298
4.76% ( 4.76 % ) senior notes due march 2018 ( cad 375m ): 322
4.45% ( 4.45 % ) senior notes due may 2043: 248
4.25% ( 4.25 % ) senior notes due december 2042: 196
3.50% ( 3.50 % ) senior notes due september 2015: 599
commercial paper: 168
other: 31
total debt: 5582
less short-term and current portion of long-term debt: 783
total long-term debt: 4799

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. .

Questions:
what was the change in total debt during 2015?
and the percentage change of this value?
what portion of the total debt is reported under current liabilities as of 12/31/15?

Answers:
155
2.8%
9.8%