Pension and Other Post-retirement Benefits - Change in Plan Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 25, 2020	Oct. 27, 2019
Pension Benefits
Change in Plan Assets
Fair Value of Plan Assets at Beginning of Year	$ 1,477,288	$ 1,313,380
Actual Return on Plan Assets	183,647	226,171
Participant Contributions	0	0
Employer Contributions	8,562	8,157
Benefits Paid	(115,965)	(70,420)
Fair Value of Plan Assets at End of Year	1,553,532	1,477,288
Funded Status at End of Year	(113,354)	(138,889)
Post-retirement Benefits
Change in Plan Assets
Fair Value of Plan Assets at Beginning of Year	0	0
Actual Return on Plan Assets	0	0
Participant Contributions	2,344	2,302
Employer Contributions	18,646	21,445
Benefits Paid	(20,990)	(23,747)
Fair Value of Plan Assets at End of Year	0	0
Funded Status at End of Year	$ (285,293)	$ (290,946)