>>737532
>Literally all Catholics I know, even traditionalists, disagree with some church document
Good thing for all Catholics then that church documents =! Church doctrine.
>How do Catholic know they are not latae sentenciae excommunicated for disagreeing with the Catechism on some issue?
You can, in theory, disagree with the complete catechism and still be in communion (note the "in theory" part though).
Catechism doesn't constitute as dogma nor doctrine but more of a Q&A of these.
I do not know about a comprehensive list of dogmas and doctrines though.
To be declared a heretic and excommunicated one must proclaim it as an absolute truth and not repent from it when corrected.
This means that even a person frequently committing grave sins e.g. fornication can still be an "orthodox" catholic in faith if he knows what he's doing is contrary to the teachings of the Church and should be avoided.
If you're someone who goes around saying same-sex marriage or fornication or stealing or murdering is ok even when you are well aware of the Church's stance on it and the absoluteness of the teaching yet still defend your heresy as a truth then you're auto-excommunicated and a heretic.