Debt | 7. Debt Debt consisted of the following: June 30, December 31, 2018 2017 (in millions) Unsecured revolving credit facility due September 30, 2021 $ 690.0 $ 538.0 Unsecured term loan due from September 28, 2018 to September 30, 2021 547.5 562.5 Senior unsecured notes due April 15, 2023 500.0 500.0 Senior unsecured notes due November 15, 2036 250.0 250.0 Other notes and revolving credit facilities 61.4 64.0 Total 2,048.9 1,914.5 Less: unamortized discount and debt issuance costs (11.8) (13.1) Less: amounts due within one year and short-term borrowings (104.4) (92.0) Total long-term debt $ 1,932.7 $ 1,809.4 Unsecured Credit Facility On September 30, 2016, we entered into a $2.1 billion unsecured five-year credit agreement (“Credit Agreement”) comprised of a $1.5 billion unsecured revolving credit facility and a $600.0 million unsecured term loan, with an option to increase the revolving credit facility up to an additional $500.0 million at our request, subject to approval of the lenders and certain other customary conditions. Weighted average interest rates on borrowings outstanding on the revolving credit facility were 3.40% and 2.96% as of June 30, 2018 and December 31, 2017, respectively. Weighted average interest rates on borrowings outstanding on the term loan were 3.34% and 2.82% as of June 30, 2018 and December 31, 2017, respectively. Senior Unsecured Notes On November 20, 2006, we entered into an indenture (the “2006 Indenture”), for the issuance of $600.0 million of unsecured debt securities. The total debt issued was comprised of two tranches, (a) $350.0 million aggregate principal amount of senior unsecured notes bearing interest at the rate of 6.20% per annum, which matured and were repaid on November 15, 2016 and (b) $250.0 million aggregate principal amount of senior unsecured notes bearing interest at the rate of 6.85% per annum, maturing on November 15, 2036. On April 12, 2013, we entered into an indenture (the “2013 Indenture” and, together with the 2006 Indenture, the “Indentures”), for the issuance of $500.0 million aggregate principal amount of senior unsecured notes at the rate of 4.50% per annum, maturing on April 15, 2023. Under the Indentures, the notes are senior unsecured obligations and rank equally in right of payment with all of our existing and future unsecured and unsubordinated obligations. If we experience a change in control accompanied by a downgrade in our credit rating, we will be required to repurchase the notes at a price equal to 101% of their principal amount plus accrued and unpaid interest. Other Notes and Revolving Credit Facilities Revolving credit facilities with a combined credit limit of approximately $63.0 million are in place for operations in Asia and Europe with combined outstanding balances of $51.3 million and $53.9 million as of June 30, 2018 and December 31, 2017, respectively. Various industrial revenue bonds had combined outstanding balances of $10.1 million as of June 30, 2018 and December 31, 2017, and have maturities through 2027. Covenants The Credit Agreement and the Indentures include customary representations, warranties, covenants, acceleration, indemnity and events of default provisions. The covenants under the Credit Agreement include, among other things, two financial maintenance covenants that require us to comply with a minimum interest coverage ratio and a maximum leverage ratio. |