diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
index f2040c8e24..7ea8e39553 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
@@ -348,12 +348,20 @@ class TextDescriptor extends Descriptor
                     $argumentsInformation[] = sprintf('Service(%s)', (string) $argument);
                 } elseif ($argument instanceof IteratorArgument) {
                     $argumentsInformation[] = sprintf('Iterator (%d element(s))', \count($argument->getValues()));
+                    foreach (array_map(function (Reference $value) {return (string) $value; }, $argument->getValues()) as $service) {
+                        $argumentsInformation[] = sprintf('- %s', $service);
+                    }
                 } elseif ($argument instanceof ServiceLocatorArgument) {
                     $argumentsInformation[] = sprintf('Service locator (%d element(s))', \count($argument->getValues()));
                 } elseif ($argument instanceof Definition) {
                     $argumentsInformation[] = 'Inlined Service';
                 } else {
                     $argumentsInformation[] = \is_array($argument) ? sprintf('Array (%d element(s))', \count($argument)) : $argument;
+                    if (\is_array($argument)) {
+                        foreach (array_keys($argument) as $service) {
+                            $argumentsInformation[] = sprintf('- %s', $service);
+                        }
+                    }
                 }
             }
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/definition_arguments_1.txt b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/definition_arguments_1.txt
index b73eeedad6..1551f96f57 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/definition_arguments_1.txt
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/definition_arguments_1.txt
@@ -17,6 +17,11 @@
                    %parameter%                  
                    Inlined Service              
                    Array (3 element(s))         
-                   Iterator (2 element(s))      
- ---------------- ----------------------------- 
+                   - 0                          
+                   - 1                          
+                   - 2                          
+                   Iterator (2 element(s))      
+                   - definition_1               
+                   - .definition_2              
+ ---------------- -----------------------------