diff --git a/xml/System.Net.Security/NegotiateAuthentication.xml b/xml/System.Net.Security/NegotiateAuthentication.xml
index 7e0b6c06de1..7173aa9fdf5 100644
--- a/xml/System.Net.Security/NegotiateAuthentication.xml
+++ b/xml/System.Net.Security/NegotiateAuthentication.xml
@@ -287,9 +287,19 @@ When <xref:System.Net.Security.NegotiateAuthenticationStatusCode.ContinueNeeded>
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Gets a value that indicates whether authentication was successfully completed and the session was established.</summary>
-        <value>To be added.</value>
-        <remarks>To be added.</remarks>
+        <summary>Gets a value that indicates whether the authentication exchange has completed.</summary>
+        <value><see langword="true" /> if the authentication exchange has completed; otherwise, <see langword="false" />.</value>
+        <remarks>
+          <format type="text/markdown"><![CDATA[
+
+## Remarks
+
+This property indicates whether the authentication exchange has completed, not whether authentication succeeded. A `true` value can be returned after either successful authentication or a terminal authentication failure.
+
+To determine whether authentication actually succeeded, inspect the <xref:System.Net.Security.NegotiateAuthenticationStatusCode> returned by the most recent call to <xref:System.Net.Security.NegotiateAuthentication.GetOutgoingBlob%2A>. The status is <xref:System.Net.Security.NegotiateAuthenticationStatusCode.Completed> on success; any other value indicates that authentication didn't complete successfully.
+
+          ]]></format>
+        </remarks>
       </Docs>
     </Member>
     <Member MemberName="IsEncrypted">
@@ -544,7 +554,7 @@ The negotiated level of protection is only available when the session
 ## Remarks
 
 For the server side of the authentication, the property returns the target name
-             specified by the client after successful authentication (see <xref:System.Net.Security.NegotiateAuthentication.IsAuthenticated>).
+             specified by the client after authentication completes successfully.
 
 For the client side of the authentication, the property returns the target name
              specified in <xref:System.Net.Security.NegotiateAuthenticationClientOptions.TargetName>.