The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.: Net sales Total assets End of year balance in cash Total stockholders' equity Gross profit (Sales - Cost of Sales) Net increase in cash for the year Operating expenses Net operating cash flow Other income (expense), net $10,719 4,547 1,043 466 2,506 27 2,051 734 (28) Compute the income before income tax for Amazon