BASIS OF PRESENTATION (Inventories) (Narrative) (Details)	9 Months Ended
	Jul. 01, 2017
Equipment [Member]
Inventory [Line Items]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	18 months
Spare Parts [Member]
Inventory [Line Items]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	24 months
Expendable Tools [Member]
Inventory [Line Items]
Reserves For Inventory In Excess Of Demand Inventory Future Consumption Period	12 months