Merging similar data and amounts

I'm sure that this is very easy but I don't know where to start.

Column A: List of document numbers
Column B: List of amounts

A B
111 $5.00
222 $10.00
111 $5.00
222 $15.00

I need to merge all equal document numbers so that it shows the full amount on that document number. It needs look like this in the end:

A B
111 $10.00
222 $25.00

I realize a pivot table will do this but the formatting of a pivot table will not work with what I am ultimately trying to do.