The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.: at sales $10,895 4,400 Total assets End of year balance in cash Total stockholders' equity Gross profit (Sales Net increase in cash for the year 1,083 426 2,460 Cost of Sales) 12 2,051 Operating expenses Net operating cash flow Other income (expense), net 752 (32) Compute Amazon's balance in cash at the beginning of the year