what is the Way of finding all standard IDOC avilable in SAP R/3 modulewise

Dear Experts,

How to know list of all avilable standard IDOCs present in SAP R/3 Modulewise(i.e. HR,MM etc)?is there any standard tcode to see all the standard IDOC(or we have to follow some other way) ?

Eagerly looking for your valuable opinion.

Regards,

Rasmiraj Tripathy