Amazon.com Inc.'s financial statements are presented in Appendix D. Financial statements of Walmart Inc. are presented in Appendix E. The complete annual reports of Amazon and Walmart, including the notes to the financial statements, are available at each company's respective website. Click here to view Appendix D. Click here to view Appendix E. (a) At December 31, 2019, what was Amazon's largest current liability account? What were its total current liabilities? At January 31, 2020, what was Walmart's largest current liability account? What were its total current liabilities? (Enter the amounts in millions.) Largest current liability Total current liabilities Amazon million million