Interpreting Debt Footnotes on Interest Rates and Interest Expense Boston Scientific discloses the following as part of its long-term debt footnote in its December 31, 2018 10-K. Borrowings and Credit Agreements In millions, except interest rates Semi- annual As of December 31, Coupon 2018 Rate January 2020 Notes May 2020 Notes Issuance Date Maturity Date December 2009 January 2020 2017 $850 May 2015 May 2020 600 May 2022 Notes October 2023 Notes May 2025 Notes May 2015 May 2022 500 August 2013 October 2023 450 May 2015 May 2025 750 March 2028 Notes February 2018 March 2028 1,000 - November 2035 Notes November 2005 November 2035 350 January 2040 Notes December 2009 January 2040 300 300 8382 28 $850 6.00% 600 285 500 3.33M 450 4.13% 750 3.85 4.00 350 7.00% 7.38 Unamortized debt insurance discount and deferred financing cost Unamortized gain on fair value hedge Capital lease obligation 2020-2040 2020-2025 Various (29) (24) 26 6 30 Long term debt 54.303 1 $3.815 (1) Corporate credit rating improvements may result in a decrease in the adjusted interest rate on our November 2035 Notes to the extent that our lowest credit rating is above 888-c Baa3. The interest rates on our November 2035 notes will be permanently reinstated to the issuance rate if the lowest credit ratings assigned to these senior notes is either A-or A3 higher