Retirement Plans (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jul. 09, 2017	Jul. 03, 2016	Jul. 09, 2017	Jul. 03, 2016
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost		$ 5,247	$ 5,579	$ 17,491	$ 18,599
Service cost		505	1,212	1,682	4,040
Expected return on plan assets		(6,494)	(5,020)	(21,647)	(16,735)
Actuarial loss	[1]	1,411	943	4,703	3,144
Amortization of unrecognized prior service cost	[1]	35	56	117	185
Net periodic benefit cost		704	2,770	2,346	9,233
Postretirement Healthcare Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost		232	292	772	972
Actuarial loss	[1]	37	51	124	169
Net periodic benefit cost		$ 269	$ 343	$ 896	$ 1,141

[1] (1)Amounts were reclassified from accumulated OCI into net earnings as a component of selling, general and administrative expenses.