Reports are a great way to view your business's accounting data in an organized and easy-to-digest way. QuickBooks Online has a number of awesome reports to choose from, and which you see is going to depend on which subscription package you have. I can help sort this out.
QuickBooks Online Essentials and Plus accounts give you access to the Transaction Detail by Account report. If you're not seeing it in your account, it could be that you're subscribed to our EasyStart Package. In that case, I recommend experimenting with the reports available to see if you can customize them to see the information you're looking for.
Here are a couple of articles so you can familiarize yourself with the reports in QuickBooks Online.