Inventories (Narrative) (Details)	Apr. 01, 2017	Oct. 01, 2016
Inventory Disclosure [Abstract]
Percentage of FIFO Inventory	63.00%	61.00%

The percentage of FIFO (first in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

No definition available.

Name:	us-gaap_PercentageOfFIFOInventory
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant