Table of Contents Working Capital Borrowings capital expenditures and dividend payments. The majority of our cash and cash equivalents are invested in a variety of highly liquid investments with original maturities of 90 days or less. These investments are viewed by management as low-risk investments on which there are little to no restrictions regarding our ability to access the underlying cash to fund our operations as necessary. While we have some investments in prime money market funds, these are classified as cash and cash equivalents; however, we continually monitor the need for reclassification under the updated SEC requirements for money market funds, and the potential that the shares of such funds could have a net asset value of less than one dollar. We also utilize cash pooling arrangements to facilitate the access to cash across our geographies. The Company actively manages working capital through inventory management as well as management of accounts payable and accounts receivable to ensure we are able to meet short-term obligations and we are effectively using assets to increase profitability. 56 During the third quarter of 2018, we repaid our CAD 400 million 2.25% notes which matured in September 2018. Notional amounts are presented in USD based on the applicable exchange rate as of December 31, 2018. Refer to Part II—Item 8 Financial Statements and Supplementary Data,  Note 11, "Debt"  for details regarding the cross currency swaps on our $500 million 2.25% senior notes due 2020 which economically converted these notes to EUR denominated.