#3734: document complex coercing behavior better.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 5b6f1e8..37640e5 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -2252,7 +2252,8 @@
In the current implementation, the built-in numeric types :class:`int`,
:class:`long` and :class:`float` do not use coercion; the type :class:`complex`
- however does use it. The difference can become apparent when subclassing these
+ however does use coercion for binary operators and rich comparisons, despite
+ the above rules. The difference can become apparent when subclassing these
types. Over time, the type :class:`complex` may be fixed to avoid coercion.
All these types implement a :meth:`__coerce__` method, for use by the built-in
:func:`coerce` function.