Summary of Significant Accounting Policies - Goodwill and Other Indefinite-Lived Intangibles (Details)	12 Months Ended
Oct. 25, 2020 USD ($)	Oct. 27, 2019 USD ($) intangible_asset	Oct. 28, 2018 USD ($)
Acquired Indefinite-lived Intangible Assets [Line Items]
Goodwill, impairment charges	$ 0	$ 0	$ 0
Number of assets, quantitative assessment, required additional review \| intangible_asset		2
Indefinite-lived intangible assets, impairment charge	$ 0	$ 0
CytoSport Trademark
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, impairment charge			$ 17,300,000

Impairment Of Intangible Assets, Indefinite-lived (Excluding Goodwill), Quantitative Assessment, Number Of Additional Assets, Require Review

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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