Visit the EDGAR database. Review the 10-K report for Amazon.com filed on February 2, 2018. You will also want to review its financial statements reported for years ended 2017, 2016, and 2015. Any sources used to support your answers below should be cited using APA Style.

To access this information:

• Search SEC.gov Company Filings for Amazon by entering the ticker information, AMZN in the Fast Search box

After reviewing the above information, answer the following question:

• If Amazon has a 2017 net income of more than $3 billion and 2017 operating cash flows of over $18 billion, how is it possible that its cash balance at December 31, 2017, increases by less than $1.2 billion relative to its balance at December 31, 2016?

I am having difficulty finding where the 1.2 billion relative to its balance is coming from.