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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fulfillment
Stock-based compensation	$ 212	$ 133	$ 90
Marketing
Stock-based compensation	61	39	27
Technology and content
Stock-based compensation	434	292	223
General and administrative
Stock-based compensation	$ 126	$ 93	$ 84

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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