What you can tell from that source is that most of the income is attributable to AWS—which is global—with most of the remainder being from sales at amazon.com, amazon.ca, and amazon.com.mx. Even if we simplify and assume that revenue from sales at amazon.com is strictly domestic, and the sales from the Canada and Mexico web sites are negligible, that says nothing about pre-tax income for the purpose of calculating US income taxes. For that you would need to know what fraction of their business expenses are related to their US operations.

"losses" and expenses like the double dutch irish sandwich the used in earlier years. We all know that before Trump's tax reform the big players parked their money in Europe to evade the US taxes, but since the reform and Europe's shift in tax regulation companies like Amazon and Apple transfer their money to the US, to pay less taxes. So the companies count these money as domestic income. Measured in terms of the amount of money involved, there are huge differences compared to the working population. Ever heard of progressive tax? This is the opposite.