At the end of the month I want to send members of my family individual bills. The easiest way is to use a breakdown of per-phone usage such as I see in the Device Settings menu so I can calculate per-phone costs. The information is all available in the multiple cvs downloads on the Bills page, but that's nowhere near as convenient. Meanwhile, I'm trying to remember to copy information from Device Settings near the end of each billing cycle.
Show bills the same way you display usage in the "device settings" menu