Ere in TT that gives the detail (description and amounts) of the amount on line 3e (Gross income from all sources) of Form 1116?

are you in online or desktop, and what version (deluxe, premier, self-employed) are you using?

desktop win 10; Deluxe

Go into the Form 1116 on the Forms menu in the upper right-hand corner.  Scroll down on the left side to Form 1116 (COPY 1).

Scroll down on the 1116 to the box JUST BEFORE box 3e.  You'll see the screenshot below.  You'll click on the number in box A and see what's detailed.