The browsing history is only found on the phone, which you can remove by clearing the cache. They are not found on your bill(unless you are working in a company which allows you to claim the bill which in htat case they are required to check your usage through the phone company). They cannot because of privacy issues and all major phone companies follow AT&T with their privacy law. THE ONLY OTHER WAY for the phone company is to ever look at your internet usage is if a police investigation is underway and the president of the company and the owner of the phone agree.
However don't worry In most cases, only The data usage is shown just what you are paying for (ie: the speed ordered and amt.