The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.:

Net sales$10,898

Total assets4,555

End of year balance in cash1,128

Total stockholders' equity394

Gross profit (Sales Cost of Sales)2,497

Net increase in cash for the year23

Operating expenses2,056

Net operating cash flow737

Other income (expense), net(18)

Compute the income before income tax for Amazon.