From the f1116 instructions:
"If you don't itemize deductions, enter your standard
deduction on line 3a, and don't enter on lines 2 through 5 any
deductions that would have been reported on Schedule A
(Form 1040). Don't include deductions and losses related to
exempt or excluded income such as foreign earned income
you have excluded on Form 2555 on lines 2 through 5."