You can print "Keyboard assignments" (via the Print dialog box). I haven't
actually tested if this includes keyboard shortcuts for macros, but I see no
reason why it shouldn't.
Alternatively, look in the Customize Keyboard dialog box: Click the Office
button, and then click Word Options. In the Customize category, click the
Customize button. At "Categories," choose "Macros" to see the available
macros and their shortcuts.