Where, after filing, can I find and view the bank account details entered for paying taxes owed?

When you print your return you should be able to choose your printing options, you will want to make sure you select to print ALL Worksheets.

How do I get a copy of a return I filed this year in TurboTax Online?

When I go to print, the only options available are which year, Federal or State, and Download. There are no options controlling worksheets or allowing direct printing.

I apologize that did not work for you.  Please click here to try the workaround found in this Community thread posted by DoninGA.