There were lots of infrastructure and state building projects. Not only by US, many European countries funded development projects too. It was hard due to the ongoing violence, sometimes a project was funded and outcome couldn't even be inspected in situ, but only from satellite images.
I was quite specific in my idea. $60-80 billion worth, without ousting the Taliban. That's different to the current state of affairs, which is a much smaller number than that, and which involved military intervention.
