I was converted from DIRECTV billing to AT&T at the end of January. I haven't had any changes to my monthly bill until my new bill just arrived today. I noticed my bill was a bit more, and when I went to look at my new AT&T bill, it had this (see image below). I do like that it shows me in the right column any price differences from the past month. The total at the top of the bill had the same ^$0.69 and when I expanded the lines, it shows exactly where the change came from. Nice easy to read/understand detail.