Amazon.com, Inc. (AMZN) is the largest Internet retailer in the United States. Amazons income statements through operating income for two recent years are as follows (in millions): Amazon.com, Inc. Income Statements For the Years Ended December 31 (in millions) Line Item Description Year 2 Year 1 Revenues: Product sales $160,408 $141,915 Service sales 120,114 90,972 Total revenues $280,522 $232,887 Operating expenses: Cost of sales $(165,536) $(139,156) Fulfillment (40,232) (34,027) Technology and content (35,931) (28,837) Marketing (18,878) (13,814) General and administrative (5,203) (4,336) Other operating expense (income), net (201) (296) Total operating expenses $(265,981) $(220,466)