Thank you for the detailed information and screenshot, @heckhelm.
I appreciate you following the steps above to get the right report showing the Account column. Allow me to join the conversation and share some insight regarding the Profit and Loss Detail Report.
At this time, adding Account as a column on the P&L Detail Report is unavailable. Since QuickBooks Online uses double entry accounting, there should be at least 2 accounts affected for every transaction.
You can find them under the Date and Split columns. To make it appear on the report, follow the steps provided by @Angelyn_T, except select those instead of Account.
For more in-depth information on this matter, check out this article: Customize your Profit and Loss report.
That should get you pointed in the right direction.
Let me know if you need anything else, I’m always here to help. Take care and have a pleasant day ahead!