Retiree Benefits (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 26, 2013	Apr. 27, 2012	Apr. 26, 2013	Apr. 27, 2012
Amortization of:
Net periodic benefit cost			$ 8,368	$ 21,080
Postretirement Benefits
Components of net periodic benefit cost
Service cost	187	250	542	500
Interest cost	282	363	584	726
Expected return on assets	(102)	(90)	(214)	(180)
Amortization of:
Prior service cost	(7)	13	35	26
Actuarial loss (gain)	(186)	(299)	(417)	(598)
Curtailment loss	0	0	0	0
Net periodic benefit cost	174	237	530	474
Pension Plans, Defined Benefit
Components of net periodic benefit cost
Service cost	2,848	5,062	5,695	10,475
Interest cost	19,536	20,056	39,047	41,243
Expected return on assets	(25,604)	(24,777)	(51,208)	(49,200)
Amortization of:
Prior service cost	152	292	305	653
Actuarial loss (gain)	4,668	4,749	14,529	16,832
Curtailment loss	0	1,077	0	1,077
Net periodic benefit cost	$ 1,600	$ 6,459	$ 8,368	$ 21,080