diff --git a/django/views/admin/doc.py b/django/views/admin/doc.py
index 7f8fa3b0b8..3b593e5944 100644
--- a/django/views/admin/doc.py
+++ b/django/views/admin/doc.py
@@ -275,6 +275,7 @@ DATA_TYPE_MAPPING = {
     'EmailField'                : 'E-mail address',
     'FileField'                 : 'File path',
     'FloatField'                : 'Decimal number',
+    'ForeignKey'                : 'Integer',
     'ImageField'                : 'File path',
     'IntegerField'              : 'Integer',
     'IPAddressField'            : 'IP address',
@@ -293,6 +294,9 @@ DATA_TYPE_MAPPING = {
 }
 
 def get_readable_field_data_type(field):
+    # ForeignKey is a special case. Use the field type of the relation.
+    if field.__class__.__name__ == 'ForeignKey':
+        field = field.rel.get_related_field()
     return DATA_TYPE_MAPPING[field.__class__.__name__] % field.__dict__
 
 def extract_views_from_urlpatterns(urlpatterns, base=''):
@@ -325,4 +329,4 @@ def simplify_regex(pattern):
     pattern = pattern.replace('^', '').replace('$', '').replace('?', '').replace('//', '/')
     if not pattern.startswith('/'):
         pattern = '/' + pattern
-    return pattern
\ No newline at end of file
+    return pattern