46.23 billion for apple. And that's a single manufacturer, albeit potentially the highest revenue one. I imagine Microsoft, Google, Facebook, Amazon, etc. all

46.23 billion for apple. And that's a single manufacturer, albeit potentially the highest revenue one. I imagine Microsoft, Google, Facebook, Amazon, etc. all are also massive core producers despite not making an external product for sale. So I'd guess trillion(s?) in production of product or internal use, or near enough.