The "dollar icon" and "view your bill" are both a little obscure. Consider using a document icon and some more informative wording like "view your detailed bill as a pdf". Consider also making this more obvious by placing it under the summary detail with larger text instead of being somewhat hidden with smaller text in a sidebar. It is very annoying that need to go and get it each time instead of the bill being all in one place in the email, hence, I still prefer the attachment, why not make this an option in the account details on the website.
