diff --git a/components/dependency_injection.rst b/components/dependency_injection.rst
index 470bcc7f2fc..26fd4d1c87f 100644
--- a/components/dependency_injection.rst
+++ b/components/dependency_injection.rst
@@ -170,6 +170,30 @@ like this::
$newsletterManager = $containerBuilder->get('newsletter_manager');
+Behavior When Service Does Not Exist
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, an exception is throw when a service does not exist. You can override the behavior by::
+
+ use Symfony\Component\DependencyInjection\ContainerBuilder;
+ use Symfony\Component\DependencyInjection\ContainerInterface;
+
+ $containerBuilder = new ContainerBuilder();
+
+ // ...
+
+ // the second argument is optional and define the behavior
+ $newsletterManager = $containerBuilder->get('newsletter_manager', ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE);
+
+
+Possible behaviors are:
+
+ * ``ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE``: Throws an exception at compile time **default**
+ * ``ContainerInterface::NULL_ON_INVALID_REFERENCE``: Returns null
+ * ``ContainerInterface::IGNORE_ON_INVALID_REFERENCE``: Ignores the wrapping command asking for the reference (for instance, ignore a setter if the service does not exist)
+ * ``ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE``: Ignores/returns null for uninitialized services or invalid references
+ * ``ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE``: Throws an exception at runtime, when trying to access the missing service
+
Avoiding your Code Becoming Dependent on the Container
------------------------------------------------------
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