diff -u b/core/lib/Drupal/Core/Field/FieldItemBase.php b/core/lib/Drupal/Core/Field/FieldItemBase.php
--- b/core/lib/Drupal/Core/Field/FieldItemBase.php
+++ b/core/lib/Drupal/Core/Field/FieldItemBase.php
@@ -36,7 +36,7 @@
   /**
    * {@inheritdoc}
    */
-  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_storage) {
+  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_definition) {
     return [];
   }
 
@@ -44,12 +44,9 @@
    * {@inheritdoc}
    */
   public static function fieldSettingsSummary(FieldDefinitionInterface $field_definition) {
-    $definitions = \Drupal::service('plugin.manager.field.field_type')->getDefinitions();
-    return [
-      t('<b>@type</b>', [
-        '@type' => $definitions[$field_definition->getFieldStorageDefinition()->getType()]['label'],
-      ]),
-    ];
+    $definition = \Drupal::service('plugin.manager.field.field_type')
+      ->getDefinition($field_definition->getType())['label'];
+    return [t('<b>@type</b>', ['@type' => $definition])];
   }
 
   /**
diff -u b/core/lib/Drupal/Core/Field/FieldItemInterface.php b/core/lib/Drupal/Core/Field/FieldItemInterface.php
--- b/core/lib/Drupal/Core/Field/FieldItemInterface.php
+++ b/core/lib/Drupal/Core/Field/FieldItemInterface.php
@@ -262,13 +262,13 @@
   /**
    * Returns a short summary for the storage-level settings.
    *
-   * @param \Drupal\Core\Field\FieldStorageDefinitionInterface $field_storage
+   * @param \Drupal\Core\Field\FieldStorageDefinitionInterface $field_definition
    *   The field storage definition.
    *
    * @return array
    *   A renderable array for the storage-level settings.
    */
-  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_storage);
+  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_definition);
 
   /**
    * Returns a short summary for the field-level settings.
diff -u b/core/lib/Drupal/Core/Field/FieldTypePluginManager.php b/core/lib/Drupal/Core/Field/FieldTypePluginManager.php
--- b/core/lib/Drupal/Core/Field/FieldTypePluginManager.php
+++ b/core/lib/Drupal/Core/Field/FieldTypePluginManager.php
@@ -126,11 +126,11 @@
    */
   public function getStorageSettingsSummary(FieldStorageDefinitionInterface $field_definition) {
     $plugin_definition = $this->getDefinition($field_definition->getType(), FALSE);
-    if (empty($plugin_definition['class'])) {
-      return [];
+    if (!empty($plugin_definition['class'])) {
+      $plugin_class = DefaultFactory::getPluginClass($field_definition->getType(), $plugin_definition);
+      return $plugin_class::storageSettingsSummary($field_definition);
     }
-    $plugin_class = DefaultFactory::getPluginClass($field_definition->getType(), $plugin_definition);
-    return $plugin_class::storageSettingsSummary($field_definition);
+    return [];
   }
 
   /**
@@ -138,11 +138,11 @@
    */
   public function getFieldSettingsSummary(FieldDefinitionInterface $field_definition) {
     $plugin_definition = $this->getDefinition($field_definition->getType(), FALSE);
-    if (empty($plugin_definition['class'])) {
-      return [];
+    if (!empty($plugin_definition['class'])) {
+      $plugin_class = DefaultFactory::getPluginClass($field_definition->getType(), $plugin_definition);
+      return $plugin_class::fieldSettingsSummary($field_definition);
     }
-    $plugin_class = DefaultFactory::getPluginClass($field_definition->getType(), $plugin_definition);
-    return $plugin_class::fieldSettingsSummary($field_definition);
+    return [];
   }
 
   /**
diff -u b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
--- b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
@@ -105,13 +105,13 @@
   /**
    * {@inheritdoc}
    */
-  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_storage) {
-    $summary = parent::storageSettingsSummary($field_storage);
-    $target_entity_type_id = $field_storage->getSetting('target_type');
-    $entities = \Drupal::entityTypeManager()->getDefinitions();
-    if (!empty($entities[$target_entity_type_id])) {
+  public static function storageSettingsSummary(FieldStorageDefinitionInterface $field_definition) {
+    $summary = parent::storageSettingsSummary($field_definition);
+    $target_type = $field_definition->getSetting('target_type');
+    $target_type_info = \Drupal::entityTypeManager()->getDefinition($target_type);
+    if (!empty($target_type_info)) {
       $summary[] = t('Referenced entity type: @entity_type', [
-        '@entity_type' => $entities[$target_entity_type_id]->getLabel(),
+        '@entity_type' => $target_type_info->getLabel(),
       ]);
     }
     return $summary;
@@ -122,11 +122,11 @@
    */
   public static function fieldSettingsSummary(FieldDefinitionInterface $field_definition) {
     $summary = parent::fieldSettingsSummary($field_definition);
-    $target_entity_type_id = $field_definition->getFieldStorageDefinition()->getSetting('target_type');
-    $entities = \Drupal::entityTypeManager()->getDefinitions();
-    if (!empty($entities[$target_entity_type_id])) {
+    $target_type = $field_definition->getFieldStorageDefinition()->getSetting('target_type');
+    $target_type_info = \Drupal::entityTypeManager()->getDefinition($target_type);
+    if (!empty($target_type_info)) {
       $summary[] = t('Referenced entity type: @entity_type', [
-        '@entity_type' => $entities[$target_entity_type_id]->getLabel(),
+        '@entity_type' => $target_type_info->getLabel(),
       ]);
     }
     return $summary;
diff -u b/core/modules/field_ui/src/FieldConfigListBuilder.php b/core/modules/field_ui/src/FieldConfigListBuilder.php
--- b/core/modules/field_ui/src/FieldConfigListBuilder.php
+++ b/core/modules/field_ui/src/FieldConfigListBuilder.php
@@ -152,17 +152,14 @@
     ] + FieldUI::getRouteBundleParameter($this->entityTypeManager->getDefinition($this->targetEntityTypeId), $this->targetBundle);
 
     $summary = $this->fieldTypeManager->getFieldSettingsSummary($field_config);
-    $settings_summary = '';
-    if (!empty($summary)) {
-      $settings_summary = [
-        'data' => [
-          '#type' => 'inline_template',
-          '#template' => '<div class="field-plugin-summary">{{ summary|safe_join("<br />") }}</div>',
-          '#context' => ['summary' => $summary],
-          '#cell_attributes' => ['class' => ['field-plugin-summary-cell']],
-        ],
-      ];
-    }
+    $settings_summary = empty($summary) ? '' : [
+      'data' => [
+        '#type' => 'inline_template',
+        '#template' => '<div class="field-plugin-summary">{{ summary|safe_join("<br />") }}</div>',
+        '#context' => ['summary' => $summary],
+        '#cell_attributes' => ['class' => ['field-plugin-summary-cell']],
+      ],
+    ];
 
     $row = [
       'id' => Html::getClass($field_config->getName()),
diff -u b/core/modules/field_ui/src/FieldStorageConfigListBuilder.php b/core/modules/field_ui/src/FieldStorageConfigListBuilder.php
--- b/core/modules/field_ui/src/FieldStorageConfigListBuilder.php
+++ b/core/modules/field_ui/src/FieldStorageConfigListBuilder.php
@@ -135,18 +135,14 @@
       '#context' => ['list_style' => 'comma-list'],
     ];
     $summary = $this->fieldTypeManager->getStorageSettingsSummary($field_storage);
-    $settings_summary = '';
-    if (!empty($summary)) {
-      $settings_summary = [
-        'data' => [
-          '#type' => 'inline_template',
-          '#template' => '<div class="field-plugin-summary">{{ summary|safe_join("<br />") }}</div>',
-          '#context' => ['summary' => $summary],
-          '#cell_attributes' => ['class' => ['field-plugin-summary-cell']],
-        ],
-      ];
-    }
-    $row['data']['settings_summary'] = $settings_summary;
+    $row['data']['settings_summary'] = empty($summary) ? '' : [
+      'data' => [
+        '#type' => 'inline_template',
+        '#template' => '<div class="field-plugin-summary">{{ summary|safe_join("<br />") }}</div>',
+        '#context' => ['summary' => $summary],
+        '#cell_attributes' => ['class' => ['field-plugin-summary-cell']],
+      ],
+    ];
     return $row;
   }