They don't yet break out AWS revenue, keeping it in the "Other" category "Includes non-retail activities, such as AWS in the North America segment, advertising services, our co-branded credit card agreements, and other seller sites in both segments."

Q3 financial reports this "Other" category at 1.582 billion over 9 months. http://phx.corporate-ir.net/phoenix.zhtml?c=97664&p=irol...