diff -u b/core/modules/node/templates/field--node--created.html.twig b/core/modules/node/templates/field--node--created.html.twig
--- b/core/modules/node/templates/field--node--created.html.twig
+++ b/core/modules/node/templates/field--node--created.html.twig
@@ -8,7 +8,9 @@
  *
  * Available variables:
  * - attributes: HTML attributes for the containing span element.
- * - items: List of all the field items.
+ * - items: List of all the field items. Each item contains:
+ *   - attributes: List of HTML attributes for each item.
+ *   - content: The field item content.
  *
  * @see field.html.twig
  *
diff -u b/core/modules/node/templates/field--node--uid.html.twig b/core/modules/node/templates/field--node--uid.html.twig
--- b/core/modules/node/templates/field--node--uid.html.twig
+++ b/core/modules/node/templates/field--node--uid.html.twig
@@ -8,7 +8,9 @@
  *
  * Available variables:
  * - attributes: HTML attributes for the containing span element.
- * - items: List of all the field items.
+ * - items: List of all the field items. Each item contains:
+ *   - attributes: List of HTML attributes for each item.
+ *   - content: The field item content.
  *
  * @see field.html.twig
  *