Retirement Plans (Components Of Net Periodic Benefit Cost) (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 14, 2019 USD ($)	Apr. 15, 2018 USD ($)	Apr. 14, 2019 USD ($) defined_benefit_plan healthcare_plan	Apr. 15, 2018 USD ($)
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Number of sponsored defined benefit pension plans | defined_benefit_plan				2
Number of postretirement health care plans | healthcare_plan				2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets				6.20%
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 5,286	$ 5,160	$ 12,334	$ 12,039
Service cost		0	114	0	265
Expected return on plan assets	[1]	(6,077)	(6,108)	(14,181)	(14,252)
Actuarial gain (2)	[2]	913	1,123	2,132	2,621
Amortization of unrecognized prior service cost	[2]	27	34	62	79
Net periodic benefit cost		149	323	347	752
Postretirement Healthcare Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost		230	220	537	514
Actuarial gain (2)	[2]	(36)	(6)	(85)	(14)
Net periodic benefit cost		$ 194	$ 214	$ 452	$ 500

[1] Determined as of the beginning of the year based on a return on asset assumption of 6.2%.

[2] Amounts were reclassified from accumulated OCI into net earnings as a component of “Other pension and post-retirement expenses, net