You will find the carryover on Form 1116:
To calculate the Foreign Tax Carryover you take the Total Foreign Tax paid (line 9) - the foreign tax credit limit (line 21)
Please see Where do I enter the foreign tax credit (Form 1116) or deduction? and Can the Foreign Tax Credit be carried over or carried back? for additional information.
[Edited 3/5/2022 | 1:25 pm PST]
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