Inventories
 6 Months Ended
Jan. 31, 2016
Inventory Disclosure [Abstract]  
Inventory Disclosure
Inventories
 
January 31,
2016
 
August 2,
2015
   Raw materials, containers and supplies
$
387

 
$
427

   Finished products
468

 
568

 
$
855

 
$
995