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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 25, 2020 | Oct. 27, 2019 | Oct. 28, 2018
Long-term Purchase Commitment [Line Items] |  |  |
Purchases under contracts | $ 900.0 | $ 1,000.0 | $ 1,300.0
Standby letters of credit issued | 47.5 |  |
Revocable standby letters of credit, included in issued | $ 3.1 |  |
Maximum | Hogs and turkeys |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Purchase commitments, time period (up to) | 10 years |  |
Maximum | Grow-out contracts |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Purchase commitments, time period (up to) | 25 years |  |
Maximum | Corn, soybean meal, feed ingredients and other raw materials |  |  |
Long-term Purchase Commitment [Line Items] |  |  |
Purchase commitments, time period (up to) | 4 years |  |

X
- Definition Represents the amount paid by the entity under the long-term purchase commitment. + References No definition available. + Details
Name: | hrl_LongTermPurchaseCommitmentAmountPaid
Namespace Prefix: | hrl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the revocable standby letter of credit included in the total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | hrl_RevocableLettersOfCreditOutstandingAmount
Namespace Prefix: | hrl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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X
- Definition Term of the unrecognized unconditional purchase obligation, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308 + Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Data Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |