Summary of Significant Accounting Policies - Accounting Changes and Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 27, 2019	Oct. 28, 2018		Oct. 29, 2017		Oct. 28, 2019	Jan. 27, 2019	Oct. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification out of operating income	$ (1,196,265)	$ (1,179,961)	[1]	$ (1,276,742)	[1]
Reclassification into interest and investment income	31,520	27,817	[1]	14,586	[1]
Reclassification from retained earnings	(6,128,207)	(5,729,956)
Reclassification to accumulated other comprehensive loss	(399,500)	(243,498)
ASU 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings	$ 10,500
ASU 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification out of operating income		19,000		3,700
Reclassification into interest and investment income		$ 19,000		$ 3,700
ASU 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification from retained earnings								$ 0
Reclassification to accumulated other comprehensive loss								0
ASU 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification to accumulated other comprehensive loss								$ (53,800)
ASU 2018-15
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capitalized cloud implementation costs							$ 27,600
ASU 2016-02 | Minimum | Subsequent event | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated increase to assets, upon adoption						$ 110,000
Estimated increase to liabilities, upon adoption						110,000
ASU 2016-02 | Maximum | Subsequent event | Scenario, Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Estimated increase to assets, upon adoption						120,000
Estimated increase to liabilities, upon adoption						$ 120,000

[1] Adjusted due to the adoption of Accounting Standards Update (ASU) 2017-07, Compensation - Retirement Benefits: Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (Topic 715). See Note A - Summary of Significant Accounting Policies.