Restructuring Charges (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended			6 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended			6 Months Ended	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013 2013 Restructuring Charges	Dec. 29, 2012 Restructuring Plan 2013 Q1 employees	Mar. 30, 2013 Restructuring Plan 2013 Q2 employees	Mar. 31, 2012 Restructuring Plan 2013 Q2	Mar. 30, 2013 Restructuring Plan 2013 Q2	Dec. 29, 2012 Historical (1)	Mar. 30, 2013 Historical (1)		Mar. 31, 2012 Restructuring Plan 2012 Q2 employees	Mar. 30, 2013 Employee Severance and Related Benefits 2013 Restructuring Charges	Dec. 29, 2012 Employee Severance and Related Benefits Restructuring Plan 2013 Q1	Mar. 30, 2013 Employee Severance and Related Benefits Restructuring Plan 2013 Q2	Mar. 31, 2012 Employee Severance and Related Benefits Restructuring Plan 2012 Q2	Mar. 30, 2013 Facility Closures and Related Costs 2013 Restructuring Charges	Dec. 29, 2012 Facility Closures and Related Costs Restructuring Plan 2013 Q1	Mar. 30, 2013 Facility Closures and Related Costs Restructuring Plan 2013 Q2	Mar. 31, 2012 Facility Closures and Related Costs Restructuring Plan 2012 Q2
Restructuring Cost and Reserve [Line Items]
Charges to operations	$ 15,810,000	$ 20,802,000	$ 31,212,000	$ 20,802,000	$ 31,419,000	$ 15,500,000	$ 15,810,000	$ 20,802,000	$ 31,212,000	$ (100,000)	$ (207,000)	[1]	$ 20,802,000	$ 29,958,000				$ 1,461,000
Severance costs															15,500,000	14,400,000	20,000,000
Facility consolidation costs																			27,000	1,400,000	800,000
Number of employees terminated						168	120						168
Defined benefit plan, curtailments						$ 600,000	$ 2,100,000						$ 1,200,000

[1] The historical balances and activity are primarily for employee severance and related benefits related to the 2012 restructuring charges.