From the Dashboard, click on your name in the top menu, and then click Account Summary. On the resulting page, click Statements at the top.
Statements are sorted oldest to newest - to switch that, click the Newest drop-down at the top. Click a statement’s date to view its details and print a copy for your records.
Note: Unless you are somehow overdue on a payment and still owe, the balance will always read $0.00. If you'd like to see the amount you paid for any given month, click to open the statement.