The ability to add arbitrary HTML attributes to your form elements is pretty basic, but seems to be mostly unavailable in Laravel. It is mentioned in Laravel's documentation for Form::label but not for anything else:
I assumed this was just a shortcoming of the documentation, but when I tested this on Form::select, I found it does not work there:
{{ Form::select('ad_week', $report_list_filters['ad_week'], ['id'=>'ad_week']) }}
(I tried again using the older & more verbose syntax for associative arrays, but that didn't help either.)