Recorrer nodo xml y capturar su valor

Dim doc As New XmlDocument()
doc.Load("usuarios.xml")

For Each node As XmlNode In doc.GetElementsByTagName("id")
        MessageBox.Show(node.InnerText)
Next


opción 2

Dim xdoc As XDocument = XDocument.Load("usuarios.xml")
        For Each element As XElement In xdoc.Descendants()

            If element.Name.ToString.Contains("id") Then
                MessageBox.Show(element.Value)
            End If
        Next