Pension and Other Post-retirement Benefits - Change in Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 25, 2020	Oct. 27, 2019	Oct. 28, 2018
Pension Benefits
Change in Benefit Obligation
Benefit Obligation at Beginning of Year	$ 1,616,177	$ 1,350,903
Service Cost	35,584	26,042	$ 31,612
Interest Cost	53,642	60,385	56,196
Actuarial (Gain) Loss	77,447	241,694
Plan Amendments	0	8,086
Curtailment (Gain) Loss	0	(513)
Participant Contributions	0	0
Medicare Part D Subsidy	0	0
Benefits Paid	(115,965)	(70,420)
Benefit Obligation at End of Year	1,666,886	1,616,177	1,350,903
Post-retirement Benefits
Change in Benefit Obligation
Benefit Obligation at Beginning of Year	290,946	272,272
Service Cost	770	690	980
Interest Cost	9,306	12,016	11,169
Actuarial (Gain) Loss	2,362	24,912
Plan Amendments	0	0
Curtailment (Gain) Loss	0	1,839
Participant Contributions	2,344	2,302
Medicare Part D Subsidy	555	662
Benefits Paid	(20,990)	(23,747)
Benefit Obligation at End of Year	$ 285,293	$ 290,946	$ 272,272