Retirement Plans (Schedule Of Future Cash Flows) (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 28, 2014	Jul. 06, 2014
Defined Benefit Plan Disclosure [Line Items]
Minimum required contribution for retirement plans		$ 0
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net year-to-date contributions		13,065,000
Remaining estimated net contributions during fiscal 2012	11,300,000
Postretirement Healthcare Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net year-to-date contributions		1,042,000
Remaining estimated net contributions during fiscal 2012	$ 400,000