Q:

Woocommerce wp_query get order by ID

I am trying to produce a plain output of order data. First step is a WP_QUery (perhaps) so I write this code;
$args = array (

    'post_type'  =>'shop_order',
    'posts_per_page' => -1,
    'post_status' => 'any',
    //'p' => $post_id,

);    

$order_query = new WP_Query( $args );

while ( $order_query->have_posts() ) :
  $order_query->the_post(); 

  echo the_ID();
  echo ' : '; 
  the_title();
  echo '<br/><br/>';

endwhile;

It obliging products a list of all orders, if I set the 'p' => $post_id where $post_id is a valid post ID, the query returns nothing.
Any idea why, hive mind? 
Alternatively is there  a Woocommerce way of producing a plain page with a layout like;
Order ID: 836
Order Status: ....

I assumed a WP_Query would be the obvious way but it is appearing like getting woocommerce order data is anything but straightforward.

A:

Update 2
To get the order data for one order, you don't need WP_query. You can use directly:
$order = wc_get_order( $order_id );
$order->id; // order ID
$order->post_title; // order Title
$order->post_status; // order Status
// getting order items
foreach($order->get_items() as $item_id => $item_values){
    // Getting the product ID
    $product_id = $item_values['product_id'];
    // .../...
}

Update 1
You should try this, as with array_keys( wc_get_order_statuses() you will get all order statuses and with 'numberposts' => -1, all existing orders.
Here is an alternative way (without WP_query or you can use thoses args in the WP_query array):
$customer_orders = get_posts( array( 
    'numberposts'    => -1,
    'post_type' => 'shop_order',
    'post_status'    => array_keys( wc_get_order_statuses() ) 
) );

// Going through each current customer orders
foreach ( $customer_orders as $customer_order ) {

    // Getting Order ID, title and status
    $order_id = $customer_order->ID;
    $order_title = $customer_order->post_title;
    $order_status = $customer_order->post_status;

    // Displaying Order ID, title and status
    echo '<p>Order ID : ' . $order_id . '<br>';
    echo 'Order title: ' . $order_title . '<br>';
    echo 'Order status: ' . $order_status . '<br>';

    // Getting an instance of the order object
    $order = wc_get_order( $order_id );

    // Going through each current customer order items
    foreach($order->get_items() as $item_id => $item_values){
        // Getting the product ID
        $product_id = $item_values['product_id'];
        // displaying the product ID
        echo '<p>Product ID: '.$product_id.'</p>';
    }
}

