Restructuring Charges (Narrative) (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Apr. 02, 2016 USD ($) employee	Jan. 02, 2016 USD ($)	Apr. 04, 2015 USD ($)	Apr. 02, 2016 USD ($)	Apr. 04, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Charge to operations	$ 4,579		$ 38,487	$ 41,726	$ 38,232
Employee Severance and Related Benefits
Restructuring Cost and Reserve [Line Items]
Charge to operations				41,362
Facility Closures and Related Costs
Restructuring Cost and Reserve [Line Items]
Charge to operations	179	$ 185		364
Q116 plan [Domain]
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges	$ 50,000			$ 50,000
Restructuring and Related Cost, Number of Positions Eliminated | employee	481
Q116 plan [Domain] | Employee Severance and Related Benefits
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 4,400	$ 37,000
Q215 plan [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employee	411
Q215 plan [Domain] | Employee Severance and Related Benefits
Restructuring Cost and Reserve [Line Items]
Severance Costs			$ 38,500