WordPress: Add Category ID in Admin

functions.php

add_filter( 'manage_edit-category_columns', 'we_categoriesColumnsHeader' );
add_filter( 'manage_category_custom_column', 'we_categoriesColumnsRow', 10, 3 );
/**
* Add Category ID column in admin
*
*/
function we_categoriesColumnsHeader($columns) {
	$columns['catID'] = __('ID');
	return $columns;
}
function we_categoriesColumnsRow($argument, $columnName, $categoryID){
	if($columnName == 'catID'){
		return $categoryID;
	}
}